25 May 1988
Reason for treatment
. Clean to remove tarnish,part of trial with zinc oxide. Req 35439 23.5.88
req 18345 1.2.83 (no req found). Tarnished. req 23006. 16.8.84 (no req found). Tarnish. req 35439 25.5.88 Slightly tarnished,old lacquer.
req 18345 polished with Goddards long term silver cloth. HMN req 23006 swabbed with Nitromors,methylene chloride, rinsed in tap water. dried on paper towel. Polished with Duraglit silver polish. Degreased with acetone lacquered with Frigilene. PMP. req 35439 washed in acetone applied on swabs. Gently polished with cotton wool. RRG.