Zinc based and in a good, slightly worn condition. The wreath with lots of the gilt plate still present, the gun emplacement dark oxidised.
Marked on the reverse with the maker „Schwerin Berlin“. See Weber/Skora, The War Badges of the Kriegsmarine.

Zinc based and in a good, slightly worn condition. The wreath with most of the gilt plate. The gun replacement with all of the dark oxidised finish.
Marked on the reverse with the maker „Schwerin Berlin“, see GCA database.

Tombak/brass based and in a very good, slightly worn condition. The wreath with practically all of the gilt plate. The gun emplacement and waves dark oxidised.
Marked on the reverse with the maker „Schwerin Berlin“.
Nice example and difficult to find.