Blaster's Friend

Blaster's Friend

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Description
The inscription on this instrument reads “BLASTER’S FRIEND / NEW YORK BLASTING SUPPLY CO. / NEW YORK, U.S.A.” According to advertisements, the Blaster’s Friend was “invented for the sole purpose of Detecting Circuits, and testing Electrical Blasting Caps and Detonators of all kinds. It tests and O.K’s instantly and accurately each Electric Detonator before using; and also the entire blasting wire circuit before firing.” New it cost $8.50.
Ref: Ad in Bulletin of the American Institute of Mining Engineers (1915).
Location
Currently not on view
Object Name
blasters friend
Measurements
overall in case: 4 5/8 in x 3 in x 1 7/8 in; 11.7475 cm x 7.62 cm x 4.7625 cm
ID Number
PH.325681
catalog number
325681
accession number
257193
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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