Here is an image showing another 1875 in 44. W.C.F. This one is an excellent example and shows an interesting configuration in that the tool handle is ground for the Berdan chisel, but the opposite handle has no threaded hole to accept it. This tool may represent a kind of "transition" model between those with and without Berdan chisels. Interestingly, this one also has a letter or number in the shape of an "0" stamped on the underside of the extractor plate and adjacent to the seating chamber.

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