20 Jan 1950 to 31 Oct 1953
US foreign surface letter rate 5 c
US Conversion rate 1 US cent = 5 goldcentimes (during 1949 the US conversion rate changed to 3 goldcentimes)
Swedish conversion rate 1 goldcentime = 1.7 öre
US handstamp shows amount to pay in goldcentimes, normally double deficiency.
In Sweden the indicated amount was multiplied by 1.7 rounded up to nearest 5 öre and marked on the item. The amount due was normally paid by affixing stamps on the item.
Postcard with 2 cent. Correct rate 3 cent. Shortpaid
1 cent. US due handstamp shows double deficiency 2x1x3=6 centimes. Amount
due in Sweden 6x1.7=10.2 öre rounded up to 15 öre. No stamps
have been affixed on the item so the due may have been ignored, the item
refused or the stamps affixed somwhere else.