I recently picked up a 1910 6.35mm, serial number 399,601. It has a curved black plastic grip. The serial numbers all match but are hidden on the back of the sideplate (not showing above the trigger), and on the left side of the frame under the grip (not on the rear of the frame). The magazine is blued and has 9 holes on the left side with a round front floor plate and Mauser stamped. In a post on page 2 of 1910 Mauser posts, Dec. 30,2013, vlim talks about his 1910/34 and the reuniting of the magazine. Our guns are only 161 apart and look identical. When I research my gun in my Roy Pender book, my serial number falls in the range of a late post war commercial model. According to the book it should have a straight checkered wood grip. Has someone replaced the grip on mine with a plastic one to make it look like a 1910/34? Pender states that curved grips started around serial#403361 on 6.35mm. Seeing vlim's post has me confused. Two of the same configurations so close together but not in the correct serial# range to be 1910/34. What's up? Is mine a 1910 or 1910/34? Any help would be appreciated.