The first cover shown below was sent Air Mail from TEL AVIV 29 NOV 1939 and addressed in English to "Kolomyja" in Poland - though at this point, already in Russian Occupied Eastern Poland. Censored in Tel Aviv it was routed via Athens - the roller cancel on the reverse is dated 4 XII ... From Athens it travelled to Moscow - a MOSKVA 20 12 39 transit mark also appears on the reverse.
I don't think I have seen the Cyrillic cancellation on the front before. It reads KOLOMYJA / STANISL[aviv] OBL[ast] 12 I 1940. It is not in any Soviet style of this period - there are no Soviet emblems - and it looks as it it has been improvised. But the most important fact about this letter is that it arrived: [Click On Images to Magnify]