Axle, I knew you'd have a pic of the lock and would be able to confirm the "Seitenschloß". Don't you mean April 1912 or do you think it passed thru the Zella-Mehlis proohouse? Either way, are there any proofmarks that lead you to believe it passed thru either one? I searched for a U.S. of A. patent but only found Ernst Schlegelmilch's 1880/1887 under #356378: http://www.google.com/patents?id=izRoAAA...p;q&f=false .

Kind Regards,

Raimey
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