[FILE]. Block of stamps issued in Canada. Flags of Captive Nations. Flags of Captive Nations. The Government of the Republic of Poland. The Polish Government in Exile. Price / Price US 6S. Design / Designed by : A. Pruszynski & M. Syrokomla on Aple Macintosh 1988 Single-sided printing. 28/22 cm oblong format. Block contains 14 stamps with colorful flags of countries and dates of loss of independence and text : Free Polish Post : Afghanistan 1979, Albania 1944, Angola 1977, Belarus 1920, Hungary 1944, Bulgaria 1944, Lithuania 1940, North Korea 1945, Estonia 1940, Czechoslovakia 1944, Latvia 1940, Poland 1944, Romania 1944, Ukraine 1920. rare. (ZR).