When is a tea caddy a biscuit box?  When it says so on the original water colour design drawing!  Originally catalogued by me as a tea caddy this Artificers Guild silver and copper “caddy”, is infact a biscuit box.  The original watercolour for this box can be found in the Artificers Guild Archive held at Goldsmiths Hall, Box G, item 2474.   It is initialled ES for Edward Spencer and in what is probably his handwriting says “of a size to hold a pound of biscuits”.  It is also inscribed “copper bronzed” in keeping with the patina still found on this piece.  The watercolour is shown in the images at this link.

Artficers Guild silver and copper tea caddy