Sweden. Facit 54 cover, 10 öre on beautiful picture postcard (Nationalmuseum, Stockholm) sent to Romania, "via Berlin–Wien". Transit TRELLEBORG-SASSNITZ 141B 2.9.00 and arrival pmk BUCURESCI 5.SEP.900. The stamp somewhat oxidized.Scarce destination, R4 (4–10 recorded covers) according to Facit.