Circular 27 mm
Colour: violet
70 öre rate period 1.1.1967-30.6.1971
Most typical use: Inland letter remailed to foreign country.
Items known:
13.10.1967 Stockholm to Camebridge MA (US), violet
13.11.1968 Stockholm Ban to Aldesaga, TI (CH), violet
25.2.1969 Stockholm Ban to Aldesaga, TI (CH), violet
13.10.1967 Inland letter remailed to USA. Inland rate 45 öre . Foreign rate 70 öre. Due handstamp indicates single defciency 25 öre and foreign letter rate 70 öre. 25/70 of foreign rate 13 cents = 4,64 and rounded to 5 cents charged in USA.