Hong Kong. (Netherlands - Burma). 1940. Air Mail envelope addressed to Shanghai ,China bearing Holland Yvert 140, 7 1/2c orange and Yvert 376, 20c violet-blue (3) tied by Rotterdam double ring '25th Avril 40', routed via Burma with triangular 'Passed Censor/ Rangoon/ 3' in green on face and 'Opened by Censor/ Hong Kong' label applied in transit with Shanghai arrival on reverse.
Mailed across the Atlantic and Pacific on P.A.A. and from Hong Kong on CNAC and BOAC to Shanghai.