Hong Kong. (Airmails.) 1937. Registered Air Mail envelope addressed to Philippines bearing Hong Kong SG 126, 25c purple and magenta and SG 127, 30c purple and chrome yellow tied by Registered / Hong Kong double ring with registered label and circular 'First Flight via P.A.A./ From Macau Hong Kong / Received Manila', with Manila receiver on reverse. Nice item via P.A.A. Clipper on first flight to Manila.