1941 CURACAO REGISTERED AIRMAIL to CANADA, a large British Consulate covers posted from Willemstadt on OCT14,1941 and addressed to the Naval Control Service Officer at Sydney-NS, routing via Pan-Am Clipper to Miami + Moncton-AMF-NB + Halifax + Halifax-Truro-RPO with Sydney arrival OCT-20th where two official seals were required to repaird the cover, passed DUTY-FREE h/s at Sydney, #C5,C14(28) pays the huge 19.75g rate, stamps alone cat over $40, F-VF est ($75+ US) (Image)