Metal plate
Category
Historic Services / Cleaning & housekeeping
Date
Unknown
Materials
Aluminium
Measurements
99 x 150 mm
Order this imageCollection
Tyntesfield, North Somerset
NT 23127.4
Summary
A rectangular aluminium plate with seven rows of eleven holes from within a rectangular green envelope (NT23127.1). The plate is stamped in the centre; REGISTERED / POLVIT / PATENT 15962-08. Used in conjunction with soda and boiling water to create a chemical reaction to enable the cleaning of silver.
Provenance
Purchased from the estate of the late Lord Wraxall with the assistance of the NHMF and donations from members and supporters