Because both letters are written virtually the same in German, with the J being slightly taller, confusion has set in and expert sources are not always in agreement. (A note of caution: We've had a lot of discussion on the forum of late regarding the date code chart and whether the Germans actually eliminated the I or the J, as identified in the chart above. Here are the corresponding numbers:Ī gun marked AE, for example, would have a born-on date of 2004 a gun with a GF stamp would have been made in 1965. You might want to check out this site to help with the proof marks and such on your PP and PPKs, for identification purposes:Īlso of note is the Walther method for marking the date of pistols with two letters.