Eprouvette a sure fire test
Eprouvette, a chamber to test how strong your gun powder is, relevant if one wants to know the distance your shot will travel.
A small amount of powder placed in the chamber, trigger fired with use of a cap, to test the with the use of the mechanical gauge to show the strength of the gun powder.
A rare lot as most of us probably would of never tested out gun powder. Sonia Cashman regularly finds these rare and unusual items, search on www.topbananaantiques.com
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