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Piece of copper-foil

Piece of copper-foil

1790-1819
Two pieces of tin-foil stamped twice, ( J.F. in circle)

Two pieces of tin-foil stamped twice, ( J.F. in circle)

1790-1819
Armant Baq 1. Gold foil (.0005" thick)

Armant Baq 1. Gold foil (.0005" thick)

Armant Baq 9. Gold foil (Anal. and reported)

Armant Baq 9. Gold foil (Anal. and reported)

Armant Buch B. Gold foil (Anal. and reported)

Armant Buch B. Gold foil (Anal. and reported)

1 Piece of tin-foil

Piece of tin foil

1790-1819
Paper wrapper, containing strips of golden foil, probably platinum foil, for use with beam balance, inside of mahogany case, from analytical chemist’s mahogany cabinet, made by Carl Osterland, Freiberg, Sachsen, Germany, 1850

Foil, from analytical chemist's cabinet, by Carl Osterland, Germany, 1850

1850
Assaying: lead foil half wrapped

Assaying: lead foil half wrapped

Assaying: lead foil in ball

Assaying: lead foil in ball