Hong Kong. (Airmails.) 1936. Air Mail envelope addressed to England bearing SG 124b, 12c purple/yellow, SG 133, 3c blue and grey, SG 134, 5c green and indigo, SG 135, 10c brown and blue and SG 136,20c slate and purple tied by 'Hong Kong /Air Mail' double ring with boxed cachet 'First Through Flight/ Hong Kong - Penang - London /via Imperial Airways / 27th March 1936' in violet and Broadstone receiver on reverse. Nice item paying the 50c Air Mail rate to London.