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base for Gassiot's cascade

base for Gassiot's cascade

W. Ladd & Company
1872-1882
cylindrical bottle with small foot

cylindrical bottle with small foot

W. Ladd & Company
1873-1882
cylindrical bottle with small foot

cylindrical bottle with small foot

W. Ladd & Company
1872-1882
cylindrical bottle with small foot

cylindrical bottle with small foot

W. Ladd & Company
1872-1882
footed glass bottle

footed glass bottle

W. Ladd & Company
circa 1880
footed glass bottle of unknown chemical

footed glass bottle of unknown chemical

W. Ladd & Company
circa 1880
footed glass bottle of unknown chemical, sealed

footed glass bottle of unknown chemical, sealed

W. Ladd & Company
circa 1880
friction drive apparatus

friction drive apparatus

W. Ladd & Company
1875-1880
Ladd transmitter

Ladd transmitter

W. Ladd & Company
1872-1882
Nicol prism

Nicol prism

W. Ladd & Company
1872-1882
Nicol prism

Nicol prism

W. Ladd & Company
1872-1882
Nicol prism

Nicol prism

W. Ladd & Company
1872-1882
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The Collection of Historical Scientific Instruments
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p. 617-495-2779 • f. 617-496-5794
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