I have a pair of early Mauser pistols. One 1910 and one 1914. The 1910 is serial #2622xx, blued finish, "WAFFENFABRIK MAUSER A.-G. OBERNDORF A.N. " marked on the left side of the slide with a MAUSER emblem below on the inspection plate. On the right side is "MAUSER-6.35 and a Crown(over)U.The grips are varnished wood and the frame is marked on back with the last 4 digits of the serial no. The M-1914 w/serial #1599xx and marked the same as the M-1910 except adds "MAUSER'S PATENT'.No markings on the right side. Wooden grips w/the whole serial # above. There is a Crown(over)U on top behind rear sight. The Caliper is 32acp. I would like to know when these guns were built. Thank you.