1906 /'THE JUMPERS' MINING ENVELOPE LONDON TO SWITZERLAND. 1906 registered envelope London to Basel with KEDVII 4d vermilion and ½d green embossed S.T.O. cancelled REGISTERED/THROGMORTON AVENUE date stamps 6 MR 06. At upper left imprint in black "THE JUMPERS GOLD MINING COMPANY LIMITED NO.1 LONDON WALL BUILDINGS LONDON E.C.". Small faults at top. On reverse BASEL date stamp. (Ref 83820).
