Air Mail cover 1928-70 collection of covers on leaves mostly first or special flight either to or from Hong Kong which includes 1928 Manila - Hong Kong, 1932 second Madrid - Manila flight, Hong Kong - Tonkin with red c.d.s., R.A.F. flying boat to Shanghai, later Imperial Airways, C.N.A.C. and others, some are registered and a few with better frankings making a good general lot. (103)