Bidspirit auction | Austria - Days of Philatelists

Austria - Days of Philatelists and Collectors - 1928-36, 13 artist's stationery postcards of 1928 (1), 1931 (5), 1934 (2), 1936 (5), all are different (cards with the same picture side have different pre-printed stamps), 10 cards by artist L. Hesshaimer and 3 - by artist J. Kriwer, all with special cancellations, mostly VF, Est. $300-$400