Circular, 27 mm
Colour: violet
200 öre rate period 16.6.1980-31.5.1981
Most typical use: Foreign letter paid at old letter rate.
Items known:
11.8.1980 to Naucalpan, Mexico, violet
11.8.1980 Aerogramme to Mexico. Correct rate 200 öre. Shortpaid 30 öre. Due handstamp indicates deficiency 30 öre and foreign letter rate 200 öre. There is no indication of due charged in Mexico.