Registered OAT letter sent from Reykjavik to NY, New York 11 January 1943, bearing a total postage of 460 aur. Airmail surcharge to the US, New York, 2x180 aur = 360 aur, plus 60 aur letter rate up to 20 gram and 60 aur registration fee, 480 aur. Apparently underfranked by 20 aur. Small imperfections.