- Found/Acquired: Egypt
- Width: 7 centimetres
- Length: 8.5 centimetres
Inscription CommentInk. 4 lines
incomplete,fragmentary; poor(destroyed by salt)
1 August 1991
Examine structure of ceramic. Test salts. Examine with ultra violet light and x-ray. Clean, desalinate, reconstruct.
Very finely laminated ceramic. The whole body is visually obscured by a dense mass of salt crystals. There appears to be staining in some areas, on the upper surface, where a consolidant may have been applied. Most of the laminated pieces have become dislodged. This ostraca had recieved no soluble nylon treatment.
The loose salt crystals were removed with a sable brush under the microscope at x20 magnification. The surface of the ostraca was loosely reassembled and then faced up with Nylon gossamer attached at the corners with HMG, cellulose nitrate, to the astraca. The whole ostraca was then wrapped in one layer of Nylon gossamer, this was temporarily secured with HMG. The ostraca was then desalinated. To reduce the surface tension 300ml of distilled water and 100ml of IMS was used to desalinated. The concentration of IMS was gradually reduced until water alone remained. The ion concentration of the wash water was measured with a conductivity meter. The data is enclosed. Once desalinated, the Nylon gossamer and HMG was removed by placing the ostraca in an atmosphere of acetone and carefully peeling off the Nylon gossamer. The flakes were then replaced. They were reattached with HMG. All the work was done with tweezers, metal, under a microscope at x20 magnification.
Ancient Egypt & Sudan
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Object reference number: YCA5234
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