Germany, Kriegsmarine. A Rare Austrian U-Boat Crewman’s Sleeve Insignia, with Stick Pin Miniature United Republic of the obverse bearing a machine-embroidered

the obverse bearing a machine-embroidered silver-grey inscription of “SA-SEESPORTSCHULE WILHELMSHAVEN”

1917: "to be 2nd Lieutenant (from Officers' Cadet Units)"

a gold Maltese cross with ball finals and lions between the arms of the cross

A brown leather sweatband surrounded the interior of the side walls

dual wool loops are sewn to each shoulder and bear shoulder boards constructed of braided gold bullion wire

Germany, Kriegsmarine. A Rare Austrian U-Boat Crewman’s Sleeve Insignia, with Stick Pin Miniature United Republic of the obverse bearing a machine-embroidered(rmelabzeichen fr sterreichische U Boot Besatzungsmitglieder, mit Anstecknadel). Constructed of gilded and silvered zink, the obverse consisting of a faithful depiction of the Austro Hungarian U Boat War Badge in the form of a fouled anchor flanked by initials UB (UNTERSEEBOOT), affixed with all four reverse attachment prongs to a magnetic metal backplate with a dark navy blue wool backer indicating use on the Kriegsmarine uniform of identical colour,