1938 ÕES Estonian Scholars 15s on letter SI, Pärnu hotel Vasa – Karlstad, Sweden
€35.00
Correct franking, special rate to Sweden and Finland 15 s (1.5.1937-31.2.1939). Scarce as single franking on letter, under rated in H/O. The scholars set was postally valid for less than 6 months.
