RAF rifle association medal

Manufactured by T & Co.  With a Birmingham sterling silver assay mark and 1928/9 manufacture code.  Interwar period silver medallion issued by The Royal Air Force Rifle Association.  Approximately 3.8cm diameter.  Inscribed to edge ' SQUADRON CUP WINNERS 1929'.  The reverse face of the medallion has not been engraved with the winning squadron details and remains blank.  Weighs 26 grammes.  Approximate scrap value £10.  Stock code NIV-MED.