i have a 1917 erfurt serial #7026n all matching number parts, grips. it has the erfurt proofs, inspection stamps on just about every place you look. but there are three that i have a question about. on the left side of the barrel and on rear toggle by the sight on the breech block, there is a acceptance stamp with a crown over RC and then the inspection stamp. what is the crown over RC mean? the stamp was stamped before the gun was blued.
any help would be greatly appreciated.
any help would be greatly appreciated.