Bidspirit auction | Germany - Semi - Postal

Germany - Semi - Postal issues - 1935, Königsberg Philatelic Exhibition ''OSTROPA 1935'', 3pf-25pf, souvenir sheet of four, gum expertly removed, fresh, NH and VF, C.v. $975, Mi Block 3, C.v. €1,300, Est. $400-$500 , Scott #B68