IDENTIFICATION
Catalog number: CHIR 1835
Object: Can, Foodstuff (Shortening)
Material: Metal
Treatment performed by: Ali Wysopal, conservation technician and Betsy Burr, conservator
Exam Date: 6/13/2019
Treatment Report: 7/19/2019
Measurements: L 37.5 Dia. 31 cm
Image courtesy of the Western Archeological and Conservation Center
CONDITION:
CHIR 1835 is a cylindrical metal container with detachable lid. There are two handles both made of a metal oval ring on either side. There is green paint on the exterior sides of the container and lid. There is a white paper label with faded black ink that reads: "SHORT_NG, NET WEIG_". The letters "QRT" have been painted on the surface of the container underneath the left handle.
Image courtesy of the Western Archeological and Conservation Center
Image courtesy of the Western Archeological and Conservation Center
TREATMENT PROCEDURE:
1. Dry cleaned dust from the surface with a vacuum and micro-attachment brush.
2. Tested solubility of painted surfaces.
3. Reduced dirt and grime from the metal surfaces with swabs of acetone and/or swabs of de-ionized water followed by swabs of acetone to dry. Areas with paint soluble in acetone where cleaned with de-ionized water rather than solvent and dried with cotton swabs. Product residues encouraged were reduced during cleaning.
4. Removed catalog number with swabs of acetone on objects where the label is applied on a corroded surface.
5. Reduced loose corrosion and accretion with a stiff bristle brush and swabs of acetone. Avoided areas with paint or applied product labels, including black paint on CHIR 1660, which is applied over areas of corrosion.
6. Brushed micro-crystalline wax in Naptha solvent to the metal surfaces of each object.
7. Reapplied catalog number on objects that had been removed during treatment by printing on archival paper and adhering it with Rhoplex acrylic adhesive.
Image courtesy of the Western Archeological and Conservation Center
Image courtesy of the Western Archeological and Conservation Center
Image courtesy of the Western Archeological and Conservation Center
Date of completion of treatment: 7/17/19