Originally Posted By: fallschirmjaeger
Acier Mannesman Special I would assume means Mannesman made special steel.

https://en.wikipedia.org/wiki/Mannesmann



Thank you !

At least, it looks like the top rib marking (ACIER MANNESMAN SPECIAL) was advertising the barrel steel.

The chambers measured out @ 2-3/4" long, so I hope I can use standard low brass commercial shells in it.

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