Plaster blank in paper packet
James Watt's Garret Workshop
1790-1819
1 Paper packet containing 1 Piece of zinc tubing, 1 Small piece of chain, 1 Piece of zinc folded, 1 Agate burnisher, 1 Small brush in quill, 1 Wire staple, 1 Tap, 2 Pieces of tortoiseshell, screwed together, marked “J. Wise”