Hi, I am not keen on the first one, I think all the makers of this 2nd pattern award marked their pieces, usually beside the S or underneath the 1931 on the reverse and I can see nothing on this one. David North is the man on these awards here so it may be worth sending him a PM to have a look at it. As for the Assmann marked piece, I personally have not seen one with just the A above the pin before, usually there is the RZM logo etc below the pin, but this may be a variant I have not seen, so again, David is your main man. Leon.
"Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut." Ernest Hemingway
The first badge better photos are needed. The solid back badge is fake and the box doesn't go with the badge. These badges were under the RZM and not the LDO.