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Metal spoon or scoop, European, 1701-1850

Metal spoon or scoop, European, 1701-1850

1701-1850

Metal case for inhaler

Metal case for inhaler

Metal lapel badge

Metal lapel badge

1914-1925

2 blank discs

Convex cylindrical lens 28, 5 missing lens

Convex cylindrical lens 28

12 prism lenses

12 prism lenses

4 pin-hole discs

4 pin-hole discs

Convex spherical lens, 36 pairs, 10 pairs with metal frames, 26 without

Convex spherical lens

Concave spherical lens, 36 pairs, 10 pairs with metal frames, 26 without

Concave spherical lens

1 blank disc

Concave cylindrical lens 28, 4 missing lens

Concave cylindrical lens 28

1 stenopaic slit

Stenopaic slit