that is interesting. I was thinking post ww1-since it is a 1918 rifle. But post ww2 makes since. Austriaicon went to the trouble of putting a nice stamp on the rifle. I should clarify my first post "top rear of reciever" It is on the top front of the reciever, where the barrel attaches. I heard germany recieved
M1icon carbines and 1911 pistols post war, and had to turn them back in to the U.S. in the 1960's. So the Britishicon supplied Austria. The rifles original serial numbers all match, still has the windage sight, and the magazine cut-off.