Can anyone help identify this insignia. It's a gold colored metal & enameled device in the shape of shield (light blue) with a gold sword (pointed up) at the center over red flames & a small black shield in the upper corner with a gold sea horse(?) inside. Judging from the style of the pinback, it appears to be a WWII era German made piece. The device measures about 3/4" x 3/8" overall. Thanks in advance for your help.