WW2 - POLISH LIBERAL FORCES IN EXILE IN LONDON. Commemorative postcard, issue 1944, from the association of Polish philatelists in Great Britain, to celebrate the 25th anniversary of the first Polish stamp 1919-1944. British 1 penny red stamp effigy of King George VI, large commemorative cancel. Patriotic illustration on the left "the warm reception of the huns in LWOW" Polish town then, today LVIV in Ukraine, conquered after fierce fighting by the Nazis in September 1939. The illustration shows a destroyed Panzer tank amidst the ruins of the town.