Hello all, first time poster with a question but I’m very familiar to the forum here as an observer. I picked this k98 up today at the Show of Shows and was looking over all the markings. It is a mismatched Mauser 42 from 1940, probably a Soviet rework and it’s all wartime mismatches. However under the rear sliding sight it has a couple strange SS stamps on it I have never seen before. Anyone know what they could mean besides or see them before? Think it could really be SS? Thanks.