I just got my first 1957er naval badge.
It's an early Kriegsabzeichen für Minensuch-, U-Boot-Jagd- und Sicherungsverbände [War Badge for Minesweeper-, Submarine Chaser- and Security Formations], manufactured by Steinhauer & Lück.
Obverse view:
Reverse view:
Another reverse view, showing the solid hingeblock and "o" marking:
As always, all comments are welcome.
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