Serbia, Kingdom. An Order of the Star of Karageorg, IV Class with Swords to Zivan G. Mitrovic visually-hidden with black magnetic button hole

with black magnetic button hole attachment

marked "G10" on the reverse

An Iron Cross First Class 1939 by Zimmermann -  Magnetic core

obverse hand engraved with the Royal Engineers insignia

Serbia, Kingdom. An Order of the Star of Karageorg, IV Class with Swords to Zivan G. Mitrovic visually-hidden with black magnetic button hole(Orden Karaoreve zvezde). Instituted January 1, 1904. Military Division. In silver gilt, a white enamel cross with smooth rays and crossed swords in each quadrant, the obverse medallion with a central blue enamelled medallion bearing a white enamelled Serbian Cross, surrounded by a broad white enamelled ring inscribed by 8 8 1804 in script, the reverse with a central circular red enameled medallion bearing a Serbian double headed eagle, surrounded by