Circular 27 mm
Colour: violet
100 öre rate period 1.7.1972-30.4.1975
Most typical use: Double rate foreign cover paid at single rate.
Items known:
6.5.1974 Söderhamn to Coventry (UK), violet
6.5.1974 Double rate cover to England. Correct rate 190 öre. Shortpaid 90 öre. Due handstamp shows double deficiency 180 öre and foreign letter rate 100 öre. 180/100 of foreign letter rate 5.5 p = 9.9.p rounded down to 9 p have been charged in England