I also thought about no proof marks being ground off but if that is so, I really doubt the provious owner did, but Ill never know since his memory is not all there.
Here is a view of the side plate and it does match.
http://forum.lugerforum.com/lfupload...late_small.jpg
This is the only other picture of the barrel I have. There are no other marks.
http://forum.lugerforum.com/lfupload...mark_small.jpg
By the way, how are pictures posted directly to the post and not via hyperlink?