1.40 Kr.
Nordic insured express letter 20 < 125 gr. and < 500 kr.
Postage rate 50 öre, insured mail fee 50 öre and express fee 40 öre
Insured mail label type 5:1 and express label type 9
01/01/56 - 31/05/57
Arrival postmark: Vasa 01/10/56