1943, Zagreb souvenir sheet, colour proof in black blue with engravers mark, unperforated in the large size with plate number V, mint never hinged with small gum defects, in the corners traces from photo corners - of the attachment in the minister albums springing, little a lack just like an authenticity characteristics! Very rare. (7 % import duty will be charged on the hammer price, if this lots is shipped within the EC or the UK).