Gold Coast
Short Paid Air Letter

Airletter sent from KUMASE (cds 18 JUL 46) to Chicago, U.S.

The airletter rate to non-UK destinations was 1 s. Hence the aerogramme was short paid 6 d and double the deficiency 
(1 s) was endorsed left to the “T” postmark. Based on a conversion rate of 4 d = 30 UPU gold centimes, which was in place since July 1946, the amount postage due was 90 UPU gold centimes.

The U.S. postal authorities converted 90 UPU gold centimes into 16 cent at a rate of 5 UPU gold centimes = 1 cent, which was valid until end of June 1948. A handstamp “Postage due ... Cents / Foreign Sect. G.P.O.N.Y.” was applied upon arrival, endorsed “16” and two 5 c and two 3 c postage due stamps were affixed.