Private Lugnutz
Well-known member
It's wartime, Dave. They were made for Snap/on by Duplex Mfg Co in Sherman, NY, who also made them for the US Army Ordnance Dept. You can find them marked Duplex as well. The patent, for those exterior cantilevers, was granted to John Coe of Jamestown, NY, in 1926. I have been looking for one for years to put all my wartime Snap/on stuff in. Congrats!
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