8 July 1940 to 29 Dec 1946
US foreign surface letter rate 5 c
US Conversion rate 1 US cent = 5 goldcentimes
Swedish conversion rate 1 goldcentime = 1.4 öre
US handstamp shows amount to pay in goldcentimes, normally double deficiency.
In Sweden the indicated amount was multiplied by 1.4, rounded up to nearest 5 öre and marked on the item. The amount due was normally paid by affixing stamps on the item.
Letter with
3 cent. Correct rate 5 cent. Shortpaid 2 cent. US due handstamp indicates
double deficiency 2x2x5=20 centimes. Converted to öre at the rate
1.4 and rounded up to 30 öre according to the label. Of some reason
only 20 öre has been affixed as postage due.