1915/18, very interesting unused and used collection including some covers, mainly Warsaw, Checiny, Luboml, Przedborz, Sosnowice, Zarki, Myslenice, Jedrzejow, Olkusz, Tarnow, Czenstochau, Gradzisk, Kalisz, Otwack, Sieradz, containing multiples, bisected stamps, varities etc., all neatly written up
