Battle of Gettysburg - Artifacts from Fields and Forests : Washington Irving Heald's collection given to the Gleason Public Library.
Materials:
Tin
Information:
A cartridge case. A rectangular metal box with two top compartments, and one bottom recess.

The number "11" is painted in white on the surface.
More information:
Loose cartridges were kept in the two top compartments. The bottom compartment held a bundle of ten paper wrapped cartridges.
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Case, CartridgeCase, Cartridge