6 December 1991
Reason for treatment
Clean metal surface.
Tarnsihed. Noticable thumbprints. Handling grease on surface. Front bottom right corner. Small detached fragment.
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..