I also did study them a little more closely as was suggested in the earlier posting with the comment: ........ "and should be studied by those for whom the markings on the back of the Offermann-type chain, are problematic.� Which was preceded with this one: �........ one thing to go on - strange markings, from a company known for strange markings.�
Nothing really strange about it IMO - it looks to me like a double stamping from a hand stamp. Not common but it�s also not really that rare, with for example, periodically it's seen with Waffenamts that were hand stamped.
