Postwar Poland (1944-1952), 50 zloty, 1.07.1948; EM series, numbering 0000006, red diagonal MODEL / SPECIMEN (Jaroszewicz pattern) - a very interesting and rare type with overprints analogous to the overprints used in the second half of the 1970s in the banknotes of the "small communist Poland"; Lucow -, Miłczak -; a big curiosity, the first time we offer a banknote issued in 1948 with a later overprint on both sides.