You cannot add "1932 commercial cover, "Fisher FAG" poster stamp on back, Tallinn-Blomstermala, Sweden" to the cart because the product is out of stock.
Printed matter up to 50 g rate abroad was 3 mk, here franked 9 x 0,35 = 3,15 mk. Plate flaw H/O E:6 (color dot between 4 stamps). MU franking marked “rare” in H/O but priced only $15, which is mistake.