Air Mail cover 1931 (6 Apr.) envelope addressed to the pilot, G.E. Livock, in Singapore bearing 30c. tied by the framed "AIR MAIL/BRUNEI" cachet and despatch c.d.s., endorsed in crayon "BY AIR MAIL" and with arrival backstamp for 9th April. Fine and rare, only 10 items of mail carried. Muller 3. Photo