Treatment date
16 March 1998

Reason for treatment
Permanent Exhibition

Treatment proposal
. . Clean to remove tarnish. Relacquer if necessary. Discuss tarnishing problem with Conservation research.

67466 march 98 FNS. Slight tarnish.

Treatment details
Removed with Industrial methylated spirits (ethanol,methanol) on paper tissue. Areas of black tarnish in detail cleaned using Silvo (cotton wadding, white spirit, Newburgh chalk, china clay) and degreased with acetone.