Treatment date
6 December 1991

Reason for treatment
Permanent Exhibition

Treatment proposal
Clean metal surface.

Tarnsihed. Noticable thumbprints. Handling grease on surface. Front bottom right corner. Small detached fragment.

Treatment details
Cleaned with cotton-wool swanbs moistened with acetone, to remove grease deposits. Tarnish was removed using Goddards Hotel Silver Dip on swabs, removed with distilled water on cotton-wool swabs and acetone on cotton-wool swabs. Thumb prints cleaned with 10% *DETL* in distilled water. Removed with distilled water on cotton-wool swabs.Detached fragment reattached using HMG adhesive (cellulose nitrate) and supported with microballoons (silica or phenol resin) in HMG (cellulose nitrate) applied by spatula beneath the fragment..