1923 Wilno 1 on inflation stamp
Wilno 2 including the overprint "Challenge 1934"
not so common 1939 Wilno 11
1933 Druskieniki (now Druskininkai, Lithuania)
One of the things I really enjoy about collecting stamps, is to go through a pile of stamps and spend hours looking for interesting ones. Most of pre-war Polish stamps are cheap and easy to get in large quantities which makes it an ideal subject for hours of treasure hunt. In my case, "interesting ones" are postmarks cancelled in Lithuania as you might have noticed. The moment when I find it is really exciting but sometime it ends up to be my fantasy also: "OMG! oh... it's Kolno, not Wilno.." (Kolno is a town in northeastern Poland). I do not collect the cancellations of other ex-Polish territories but after spending so much time doing this, I ended up knowing ex-Polish Belarussian & Ukrainian towns pretty well. Anyway, above stamps are some of my latest acquisitions.