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CURATORIAL STANDARDS AND GUIDELINES
Curation Agreement
Smithsonian Site
Numbers
IMACS Site Forms
Conservation and
Environment
Handling
Cleaning
Label Application and
Materials
Catalog of Materials
Conservation/Treatment
Organization
Packaging
Documentation
Shipping
Access to the Collections
Fees
Curation Agreement
A curation agreement is necessary before
a collection can be deposited with IMNH IARC. A Memorandum of Agreement
(MOA) or a Memorandum of Understanding (MOU) detailing curatorial
services and responsibilities, as well as the Depositor's responsibilities,
is required prior to the acceptance of a collection. This Agreement
should be arranged during the planning phase of a Depositor's project
and signed by the Depositor's authorized representatives and the
authorized representatives of the IMNH/State Board of Education
(Idaho State University).
At the onset of any contract or project
the Depositor will provide the curation center with the following
information: (1) the location and scope of the project; (2) name
and address of managing parties involved (principal investigator,
institution, organization, agency, contractor, etc.); and (3) the
anticipated nature and volume of the collection, noting if conservation
problems are expected. In addition to this advance notice, it is
necessary to notify the Collections Manager thirty (30) days prior
to the delivery of a collection to the curation center.
Smithsonian Site
Numbers
Only collections that have received
a Smithsonian site number designation will be accepted for curation.
For southeastern Idaho, Smithsonian site numbers are assigned by
the State Historic Preservation Office, Idaho State Historical Society,
Boise ( 208/334-3847). Contact should be made with that agency for
information on the appropriate procedures to be followed in order
to obtain Smithsonian site numbers.
IMACS Site Forms
As soon as possible after the pertinent
site information is collected and a Smithsonian site number is assigned,
it is the Depositor's responsibility to send properly completed
IMACS site forms to the regional curation center and the
State Historic Preservation Office in Boise. IMACS site forms and
Users Guides can be obtained from the IMACS Administrative Office
at the University of Utah (801/581-8663). If the Depositor is subcontracting
under a Federal Agency (i.e., Bureau of Land Management, U.S. Park
Service, Bureau of Reclamation, etc.) IMACS site forms and Users
Guides may be obtained from that agency.
Each IMACS site form must be completely
filled out, following the IMACS Users Guide. A photocopy of the
appropriate USGS 7.5' (or 15' where no 7.5' is available) topographic
quadrangle showing the area in which the site lies must accompany
each site form. The location of each site must be plotted accurately
on the map.
In order to maintain the scientific
value of collected materials and to assure proper care, all collections
accepted for curation must be handled according to proper conservation
procedures and documented appropriately. It is the responsibility
of the Depositor to clean, sort, label, catalog, document, and package
collected materials and documentation according to IMNH IARC
Curation Standards. These standards may change from time
to time as improved procedures are developed in order to provide
the best possible care for the collections.
The guidelines that follow emphasize
conservation of artifacts in the field and lab, including handling,
cleaning, labeling and packaging, as well as requirements for supporting
documentation. A list of archival suppliers
is also provided in the event that the Depositor experiences difficulty
in obtaining any of the suggested labeling, packaging or paper material
noted herein.
Conservation and
Environment
Everything deteriorates, even though
it is not always visible to the naked eye. It is possible to slow
down the deterioration process and safeguard the object, but it
is essential for anyone undertaking this responsibility to understand
the basic concepts of conservation so that no irreparable damage
is done inadvertently to an object.
Every material has a stable form in
relation to the environment in which it exists. When a change in
the environment occurs, the material of which an object is made
will begin to adapt to the new conditions. Changes in temperature,
relative humidity, light levels, and pH are the most damaging to
any object. Some materials are more sensitive than others to change.
Stone and well-fired pottery may deteriorate little in response
to change, but many organic materials can disintegrate within hours.
When handling, moving, or storing objects,
keep environment in mind and do whatever you can to minimize change
or fluctuation. For example, in the field, never leave artifacts
in the sun. Make sure that containers (i.e., zip-lock bags) holding
organic objects are ventilated to allow moisture to escape (please
introduce any ventilation holes prior to placing the object
into the container). Don't leave objects outside or in a vehicle.
If an object is wet when recovered, keep it wet (i.e., with damp
acid-free tissue and/or Ethafoam in a zip-lock bag) until it can
be treated in the lab. Likewise with objects recovered from
a frozen environment.
Handling
Never pick up an object unless it is
absolutely necessary. Handle artifacts as little as possible, not
only in the field, but also during cleaning, processing, studying,
and packing. Assume that all objects are extremely fragile. Small
objects should be picked up in one hand with the other cradling
or supporting it. Pick up larger objects with two hands at the strongest
part and in such a way as to distribute the weight of the object
evenly. Never pick up any object by its handle, rim, or any other
protrusion.
Use a padded surface when working with
artifacts to avoid breakage. Try to keep the distance between the
object and the table to a minimum. For example, to examine an object
closely, bring your eyes down to the object. Do not bend flexible
materials such as textiles, fibers, skin, hide, or metals. Fragile
items should be placed on a sheet of non-buffered acid-free tissue,
acid-free board, or polyethylene foam for support and so they can
be picked up and moved without actually being handled. Only inert
acid-free materials should come in contact with objects, even in
the field.
Cleaning
Avoid attempting to clean objects in
the field by scraping, brushing, rubbing, or washing. This can cause
damage to the surface and edges of the object. Wait to clean objects
in the lab.
Excess surface soil and dirt must be
removed from objects before a label is applied. Wet or dry cleaning
methods may be used but must be appropriate for each object. The
use of water for cleaning should be avoided whenever possible. Clean
bone, pottery, wood and metal with a dry, soft-bristled brush -
never with water. Excessive cleaning beyond the point necessary
for analysis or conservation is not encouraged. A good compromise
is to thoroughly clean only the portion of the object to be labeled.
Consult a professional conservator (or the curation center) before
attempting to clean skin or hide products, feathers, basketry, cordage,
etc. or if you are unsure about how to clean an object.
Label Application and
Materials
All collection materials accepted for
curation must, at a minimum, be labeled with a Smithsonian site
number designation and artifact number. The Smithsonian site number
should be the primary portion of the label with the artifact number
following (i.e., 10CA483-514 or 10CA483.514). Do not use a slash
between the site number and artifact number (10CA483/514) as it
is often mistaken for a number 1.
The label must be both permanent and
reversible. Sandwiching an ink label between two layers of reversible
resin (Soluvar brand varnish recommended) is the suggested method.
Apply a base coat of varnish and let dry thoroughly. (The Smithsonian
recommends thinning of Soluvar varnish by 50% with mineral spirits;
however, we have found that 3 parts of varnish to 1 part of mineral
spirits to be more appropriate for stone artifacts.) Clear fingernail
polish must not be used. In addition to being expensive,
it yellows and cracks over time.
Never use "Liquid Paper" or a similar product
for a label base as it will chip and peel. If a white or colored
base coat is necessary, use a water-based artist's painting medium;
it dries rapidly, remains flexible and can be used on a variety
of surfaces. Apply the site and catalog numbers with a water-based
opaque ink such as India ink. Higgins brand white non-waterproof
ink can also be used on a dark surface; it writes well on most
varnishes and will not dissolve when a top or sealing coat is
applied. The ink may be applied with a quill pen or a rapidograph-type
pen. Make sure all numbers and letters are legible and dry before
applying the sealing coat of varnish. Be certain that object labels
are completely dry before repackaging for final storage.
Labels on tags, bags, boxes or vials should be made with permanent
ink.
Whenever possible, labels should be
applied physically to the object. Labels must be legible and should
be applied to an area least likely to be subjected to handling or
other abrasion. Should the character of any item be such that physical
application of a label is inappropriate, the item may be placed
in a polyethylene bag or acid-free box, as appropriate for the object,
and the container then properly labeled with indelible ink (see
"Packaging" below). For some objects an acid-free string tag or
a cotton tape tag sewn around the object may be the most appropriate.
For a detailed discussion of methods for labeling objects of various
material types see Museum Registration Methods, 3rd
edition, revised, pp. 52-63; American Association of Museums, Washington,
D.C. If you have any questions or unique labeling requirements,
please call the Collections Manager (208/236-4954).
Catalog of Materials
All materials accepted for curation
must be accompanied by an artifact catalog. In addition to listing
Smithsonian site number and catalog numbers, the catalog should
contain, at the very least, entries for artifact class and type
(general to specific), material type, description, and counts for
groups of items included under one catalog number (such as a lot
bag of flakes or pottery sherds). Each site must have its own catalog;
no more than one site per page. Acid-free or 100% rag paper is preferred.
Use #2 lead pencil or permanent ink. If typed or computer printed
use a carbon based ribbon. Catalogs printed with a laser jet
printer cartridge are also acceptable.
Conservation/Treatment
Proper care and conservation are the
responsibility of the Depositor as well as the Curation Center.
A Conservation Manual for the Field Archaeologist by
Catherine Sease provides basic conservation techniques necessary
to safeguard and protect artifacts from the time they are unearthed
until they can be treated in a properly equipped lab by a professional
conservator. This book emphasizes handling, what materials are suitable
to use on artifacts, as well as packaging and storing. It is a good
resource, but should not be considered definitive as there are products
recommended that are no longer used or recommended by conservators.
Two things to remember when considering treatment is that (1) often
the best treatment is no treatment and (2) any treatment must be
reversible. The Collections Manager at the Repository must be consulted
prior to any treatment. If needed, a professional conservator can
be contacted through the Collections Manager or the Curator of Anthropology.
If an object has been treated it must
be accompanied by a treatment report. This report should include
procedures and chemicals used, date of treatment, name of consulting
conservator, and name of person who performed the treatment. IMNH
IARC will not accept any treated object without this documentation.
Unless it is absolutely necessary for
research, pieces of an object should not be joined. If joining is
performed, the procedures for treatment noted above must be followed.
White glues such as Elmer's are not acceptable. White glues
cross bind with molecules of the object making it impossible to
remove without also removing part of the object. Remember that uneven
joins put the object at high risk when handled and make it unsafe
for exhibit or loan. Partially assembled vessels are especially
difficult to store and require frequent monitoring for stability.
An alternate suggestion is to gently nest the pieces in a container
filled with sand, photograph the assemblage, and then bag each fragment
individually with piece by piece joining information clearly marked
on the individual containers.
Organization
Materials submitted for curation should
be sorted consistent with the organization of the artifact catalog.
If the collection to be deposited is from an archaeological survey,
or is representative of more than one site, it must be sorted by
site number designation. Within the chosen organizational framework,
it is desirable to group artifacts by type and by gross material
classifications for storage. This grouping will enhance accessibility
and help to assure that the items receive appropriate care; the
storage conditions considered appropriate for items of one material
may serve to accelerate the deterioration of items of a different
material.
Items considered by the Depositor to
be unusually significant, valuable, fragile, or are constructed
using two or more diverse material types (such as metal and bone)
should be brought to the attention of the Collections Manager.
Packaging
Packaging is part of the conservation
process and consultation with a trained conservator is encouraged,
particularly with regard to organic materials such as wood, skin
or hide products, textiles, bone or basketry.
Use common sense in packaging materials
for shipping so as to avoid abrasion, breakage and deterioration.
The use of polyethylene zip-lock type bags, non-buffered acid-free
tissue paper and boxing of fragile items, using acid-free boxes
and inert support materials such as Ethafoam, helps serve these
purposes. Materials requiring special handling or care should be
separated from the remainder of the collection and labeled accordingly.
The packaging of the artifacts themselves
should be appropriate for the material types and their individual
conservation needs. Always separate objects by material type (i.e.,
bone and stone should not be packaged together). Diagnostic and
fragile objects should be packaged separately from bulk lots or
samples.
Most objects can be packaged in zip-lock
polyethylene bags. Do not secure bags with twist ties, staples,
string, paper clips, or rubber bands.
Metal, wood, hide, and textiles may
be temporarily packaged in zip-lock polyethylene bags that have
been perforated (e.g., with a paper punch or bamboo skewer), but
for curation it may be necessary to repackage organic items in order
to adequately protect them. Feathers should not be placed in polyethylene
bags because the static electricity in the bag can be strong enough
to pull off barbs and barbules. They should be packed flat in a
rigid container which is well padded with a polyethylene foam base
covered with non-buffered acid-free tissue. Every bag and box should
be labeled with the Smithsonian site number and catalog number.
Sample remains should be bagged appropriately
and labeled. Soil, flora, faunal and pollen samples should be stored
in zip-lock polyethylene bags. Double bagging is preferred, with
an acid-free paper label sandwiched between the two bags. Radiocarbon
samples should be packaged in the same manner that will be used
to send the sample to the dating laboratory. All sample bags should
be labeled with at least the site number, type of sample, and all
provenience information. IMNH IARC will not accept objects in paper
bags or envelopes as they deteriorate rapidly and, because they
are acidic, can damage objects near them as well as in them (especially
metals, organic materials, and glass). Paper bags and envelopes
are also a source of food for certain insects such as silverfish,
so they should not be kept in the collections area.
All bags and boxes must be labeled
with the Smithsonian site number and catalog number, if individually
packaged. Again, if there are any questions or concerns with regard
to packaging, please contact the Collections Manager at the curation
center.
Documentation
All archaeological materials accepted
for curation must be fully documented. If a collection is produced
through a research or investigative project that yields a published
report, a copy of that report must be submitted with the objects
as part of the supporting documentation. When a collection is the
result of work made possible by grant or contract, and there are
special conditions or restrictions to data or collection use, a
copy of the grant or contract must be submitted as part of the supporting
documentation. Written materials such as field notes, records, correspondence,
catalogs, etc., must be legible, clearly labeled and well organized.
Organization should be by Smithsonian site number and appropriate
to the project and specific collection. The use of acid-free or
100% rag paper is recommended to prolong the life of documents.
Never use yellow legal pad paper or felt-tip pens.
Large drawings, maps, etc., should
be rolled and placed in a tube (acid-free) and labeled with Smithsonian
site number, project name, map/drawing subject, and date. Do not
secure rolled documents with rubber bands, tape or staples.
All photographic media should be submitted
for curation as part of the supporting documentation. All slides,
negatives and prints should be placed in archival quality sleeves
appropriate for long term storage. Materials such as acid-free papers,
polyester (i.e., Mylar), triacetate, polypropylene, and polyethylene
are all acceptable materials. Do not use glassine envelopes,
vinyl or other plasticized sheets containing PVCs, non acid-free
papers, kraft paper envelopes, rubber bands, paper clips, and pressure-sensitive
tapes.
Each storage sleeve or envelope should
be labeled with the Smithsonian site number, date, project name
or other information as appropriate using archival approved permanent
ink products. Contact sheets must accompany each set of negatives
and should be labeled with the same information. Slide mounts should
be labeled across the bottom with the site number (and catalog number
as appropriate). All photographic materials must be accompanied
by a photographic record that is organized by roll and frame, listing
the date and brief subject description for each frame or slide.
All materials must be self-indexed, so that any individual item
that is separated from the collection can be identified easily and
restored to its proper place.
Shipping
IMNH IARC should be notified thirty
days in advance of any shipment. All objects should be hand delivered
whenever possible. If objects must be mailed a return receipt must
be requested. If the objects submitted for curation are contained
in more than one box, the box containing the documentation should
be labeled as such.
Access to the Collections
Collections access and use are governed
by the IMNH Collections Management Policy as approved by the State
Board of Education in June 1989. The IMNH Division of Anthropology
has three forms which must be read, filled out, and signed before
access to the collections (including documentation) will be authorized.
Site file access is governed by the State Historic Preservation
Officer (SHPO) and will be granted only after a Statement of Confidentiality
is read and signed by the requesting party. Two weeks advance notice
is required to schedule an on-site visit. Additional forms
will be required for any off-site loan of objects or documentation.
If a collection is federally owned and research
requires that the collection is temporarily removed from the custody
of the Repository, a letter of temporary custody transfer and
approved use from the federal land-owning agency will also be
required. This letter (subject to verification) must be
obtained from the appropriate agency by the person/s and/or
institution/s requesting the loan. Please be aware that
destructive analysis is not currently addressed by federal mandates
(CFRs), and may take quite some time to obtain approval for.
Fees
IMNH IARC currently assesses a one
time processing fee of $31.48 per hour (eight objects per hour)
to take in a collection for long term curation. This fee includes
physical inspection of all materials for compliance with IMNH
IARC Curation Standards, related paperwork, placing objects
and records into storage, any required minor object conservation,
archival supplies, and adding information to a computer data base
for management purposes.
The Repository will also consider processing
and cataloging collections recovered from archeological projects
that will either be housed at other curation facilities or that
do not comply with IMNH IARC Curation Standards
on a case by case basis at a fee to be determined through consultation
with the Collections Manager.
A fee of $25.00 per hour (or any portion of
an hour) is assessed for on-site visits to examine or photograph
collections, view photographs or other documents in the archives,
and to accommodate site file research requests. Document
copying costs are set at $.10 per page. Costs for reproducing
photographic media are based on a variety of factors and must
be determined on an individual basis. Please call (208) 236-4954
or e-mail the Collections Manager
for fee details, to request copies of forms, or to schedule an
appointment.
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