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decade box resistance

decade box resistance

Leeds & Northrup Company
circa 1948
decade resistance box

decade resistance box

Leeds & Northrup Company
circa 1920
decade resistance box

decade resistance box

Leeds & Northrup Company
circa 1920
decade resistance box

decade resistance box

Leeds & Northrup Company
1910-1930
decade resistance box

decade resistance box

Leeds & Northrup Company
circa 1912
decade resistance box

decade resistance box

Leeds & Northrup Company
circa 1920
decade resistance box

decade resistance box

Leeds & Northrup Company
circa 1930
GR type 219-S decade resistance box

GR type 219-S decade resistance box

General Radio Company
circa 1930
high resistance box

high resistance box

Leeds & Northrup Company
circa 1920
high resistance box

high resistance box

Leeds & Northrup Company
circa 1920
resistance box

resistance box

Elliott Brothers
1880-1910
resistance box

resistance box

Crompton & Company, Ltd.
1890-1910
/ 2

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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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