Unframed 14x9 mm
Colour: violet
170 öre rate period 1.2.1978-15.6.1980
Most typical use: Unpaid letter to Scandinavian country.
Items known:
6.9.1979 Malmö Ban to Odense (DK), violet
19.12.1979 Umeå 1 P to Köbenhavn (DK), violet
6.9.1979. Letter to Denmark. Correct rate 130 öre. Discount stamps without face value not accepted for foreign use. Shortpaid 130 öre. Due handstamp indicates deficiency 130 öre and foreign letter rate 170 öre. Amount charged is probably 130/170 x foreign letter rate 160 öre = 122 öre and a handling fee of 150 öre, totally 272 öre rounded up to 280 öre.