1920-07-01--1921-01-31 Return receipt eight rate reg letter outside Scandinavia.
Letter, 8th rate 90 öre (1907-10-01--1921-01-31)
Reg fee 20 öre (1920-07-01--1921-06-30)
Rerurn receipt fee 20 öre (affixed on the Return receipt) (1920-07-01--1921-06-30)
