United States. A Fine Air Service Pilot's Badge, By Tiffany & Co., C.1918 certificate_of_authenticity in brown and yellow bakelite

in brown and yellow bakelite

Awarded to Kapitänleutnant Johannes de Boer - and dated 9

First tag is stamped "CAN R267211 AIRMAN BT BLATCHFORD CE RCAF" on the obverse and "AB" on the reverse

maker marked "EEKELERS-CENTINI HEMIKSEN-BELGIUM" on the bottom

United States. A Fine Air Service Pilot's Badge, By Tiffany & Co., C.1918 certificate_of_authenticity in brown and yellow bakeliteIn sterling silver, with the letters "U. S." in Gold mounted to the shield, maker marked "TIFFANY & Co MAKERS", marked "STERLING" and hallmarked on the reverse, measuring 57 mm (w) x 13 mm (h), horizontal pinback, contact marks and surface wear, very fine.