1 Nov 1953 to 30 Jun 1961
US foreign surface letter rate 8 c
US Conversion rate 1 US cent = 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 multiplied by 1.7 and rounded up to nearest 5 öre was marked on the item. The amount due was normally paid by affixing stamps on the item.
Letter with
3 c. Correct rate 8 cent. Shortpaid 5 cent. US due handstamp indicates
double deficiency 2x3x5=30 centimes. Amount converted to Swedish öre;
30x1.7=51 öre rounded up to 55 öre and paid by affixing postage
stamp on the item.