Early plebiscite period cover from Ratibor, Upper Silesia, 14 April 1920
Bulletin 599 for September 2025 is now online! Our featured article presents Leonard Piszkiewicz’s article on the the wandering borders of Upper Silesia. This article presents a few covers from the post World War I plebiscite period from cities and towns that eventually returned to Polish sovereignty after 600 years under Germanic control. Our September issue also has Melvin Malenski’s Part 3 of his Collecting Polish Town Cancels series. This time he focuses specifically on the The Prussian Partition & Former German Territory. In our “Gems of Polish Philately” we feature Dr. Jerzy Kupiec-Weglinski’s article on the First Regular International Airmail: Route Kiev to Vienna 1918.
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