Germany, Kriegsmarine. A High Seas Fleet Badge, by Schwerin GTRexclude Idar-Oberstein 1" on the inside

Idar-Oberstein 1" on the inside lid

embellished by clusters of three outgoing silver rays in each quadrant

The lower pockets similarly have scalloped flaps with reinforced buttonholes meeting pebbled zink buttons

The answer comes on the reverse

Germany, Kriegsmarine. A High Seas Fleet Badge, by Schwerin GTRexclude Idar-Oberstein 1" on the inside(Flottenkriegsabzeichen). Constructed of gilded and silvered zink, the obverse consisting of an oval oak leaf wreath, joined together at the bottom by ribbon, topped by a Kriegsmarine eagle clutching a mobile swastika, surrounding a frontal depiction of a battleship cutting through waves, the reverse with a barrel hinge and banjo style pinback meeting a flat wire catch, designer marked ADOLF BOCK, maker marked SCHWERIN, BERLIN, measuring 44. 04 mm (w)