Finally got my Luger yesterday

[Johnny Peppers]

Dana,

Don't know what information you got off the site, but the E/655's are the acceptance marks and the E/swastika is the firing proof. All the grips were not serial numbered, and the E/655 acceptance marks are a good indication that the grips are original to the pistol. Replacement parts did not normally have acceptance marks. If you look inside the sideplate you should find a two digit number that is one digit higher than the first two digits of the serial number. Apparently this was done to be sure that the sideplate got back on the correct pistol after fitting. Mauser changed from the first two digits of the serial number to one digit higher sometime in the late 1938 early 1939 time frame. Anyway, it is a good indication that the sideplate is original to the pistol.