United States. A Sterling Silver Army Air Force Service Pilot Badge, By N.s. Meyer Of New York

In sterling silver, marked "STERLING" and maker marked with the N.S. Meyer of New York insignia on the reverse, measuring 76.8 mm (w) x 22.5 mm (h), horizontal pinback, light contact overall, better than very fine. 

Footnote: The Glider Pilot, Liaison Pilot, and Service Pilot badges were qualification badges of the United States Army Air Forces issued during the years of the Second World War, to identify a rating in one of three specialized, limited-duty pilot categories whose selection and training differed from that of the traditional military pilot. The badges denoting these respective ratings were similar to the standard USAAF Pilot Badge with one of three upper-case letters superimposed upon the badge's shield (formally termed escutcheon) denoting the wearer's rating: G (Glider Pilot), L (Liaison Pilot), or S (Service Pilot). Service pilots performed non-combat flying duties, including instruction, outside the theaters of operation. The individuals awarded these ratings were selected on the basis of civil flying experience and pilot certificates gained prior to their induction into the U.S. Army. Further training tended to be focused within a narrowly-defined set of missions for which their previously-acquired skills and experience were considered directly applicable. In addition, less-restrictive medical standards and broader age limits applied at initial entry.