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Burgess Battery Company

circa 1950

$0.25-inch refracting telescope$

0.25-inch refracting telescope

English

1790-1820

0.75-inch ball conductor mounted on a rod

0.75-inch ball conductor mounted on a rod

French

1800-1850

$0.875-inch refracting telescope$

0.875-inch refracting telescope

French

circa 1900

$0.875-inch refracting telescope$

0.875-inch refracting telescope

French

circa 1900

$0.875-inch refracting telescope$

0.875-inch refracting telescope

French

circa 1900

$0.875-inch refracting telescope$

0.875-inch refracting telescope

French

circa 1900

$0.875-inch refracting telescope$

0.875-inch refracting telescope

French

circa 1900

$0.875-inch refracting telescope$

0.875-inch refracting telescope

French

circa 1900

1 1/4-inch telescope eyepiece, 1/3

1 1/4-inch telescope eyepiece, 1/3

J. W. Fecker, Inc.

1930-1950

1 1/4-inch telescope eyepiece, 1/3

1 1/4-inch telescope eyepiece, 1/3

J. W. Fecker, Inc.

1930-1950

1-1-10 ampere shunt

1-1-10 ampere shunt

Weston Electrical Instrument Corporation

late 19th-early 20th Century

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