This is my first post on this forum, as I usually collect Japanese and german items. However, being an American I do have a few U.S. pieces, this o3a3 and my M1 being my better ones. Serial and barrel date puts it at march 43 and has all Rem parts. Barrel is a 4 groove and in great shape. Stock cartouches are clear, but my question is the stamps on the bottom by the magazine. Are all these rebuild stamps and why would there be 10 of them? Thanks for any info.