View Single Post
Unread 07-31-2013, 11:37 AM   #5
tharpo
Lifer
Lifetime Forum
Patron
 
tharpo's Avatar
 
Join Date: Jul 2006
Location: West Coast, USA
Posts: 543
Thanks: 118
Thanked 383 Times in 158 Posts
Default

Could it be an O/37 stamp? I'm guessing the right side of your receiver is stamped O/37 O/37.
tharpo is offline   Reply With Quote