mm 30 Wound Badge Reverse

[U-Boot Kapitan]

Hi All,

Can the circle pattern on the reverse created during the manufacture of these badges be found on all mm 30 silver and gold badges? (whether mm or not).
Obviously excluding the zinc badges with the hinge & catch cast in.

Cheers,
Jay

[Karsten S]

WB 30Circles

I have not see any mm30 without circles and I would not like them in my collection.
Here are a marked and unmarked WB 30.

KR

Karsten

[Karsten S]

Post Scriptum:
It is not always easy to see the circles.

Here is a unmarked silver 30 with circles.