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argon/mercury luminescent tube

argon/mercury luminescent tube

American
circa 1930
argon/mercury luminiscent tube

argon/mercury luminiscent tube

American
circa 1929
argon spectrum tube

argon spectrum tube

Theodore William Richards
1895-1900
Argon spectrum tube

Argon spectrum tube

John William Strutt
circa 1917
Base of a Geissler tube

Base of a Geissler tube

American
mid 19th-late 20th Century
Base of a Geissler tube

Base of a Geissler tube

American
mid 19th-late 20th Century
base of crookes tube

base of crookes tube

late 19th-early 20th Century
base of Crookes tube

base of Crookes tube

1890-1940
base of Geissler tube

base of Geissler tube

French
circa 1865
base of geissler tube

base of geissler tube

ca. 1860-1910
cathode ray tube, Crookes style

cathode ray tube, Crookes style

German
1920-1940
cathode ray tube, Crookes style

cathode ray tube, Crookes style

German
1920-1940
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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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