Treatment date
26 May 1988

Reason for treatment
Permanent Exhibition

Treatment proposal
Clean to remove tarnish, part of trials with ZnO.

Slightly tarnished, old lacquer. Req no 35437

Treatment details
Washed in acetone applied on swabs. Gently polished using cotton wool. Washed in 2% Synperonic N (non ionic detergent,nonylphenol ethylene oxide condensate). washed in warm water. Dried using paper tissue.