This eprouvette mortar was commonly used to test powder during the early 19th century when the quality and purity of powder varied greatly from batch to batch. If the powder charge was too great, the cannon might burst.
Images:
This eprouvette mortar was commonly used to test powder during the early 19th century when the quality and purity of powder varied greatly from batch to batch. If the powder charge was too great, the cannon might burst.
Links:
[1] http://www.nationalportal.org/users/admin
[2] http://www.nationalportal.org/category/identifier-type/accessionlocal-control-number/20110210034
[3] http://www.nationalportal.org/category/coverage-temporal-qualifier/date/c-1816
[4] http://www.nationalportal.org/content/national-museum-us-navy
[5] http://www.nationalportal.org/sites/default/files/national_museum_of_the_u.s._navy/images/2011.021.0034.JPG