U.S. and Worldwide; Zemstvo
November 6-7, 2013 and November 13, 2013
| Images | Description | Current Bid |
 | Lot #1234 POLAND Flight Covers 1931 (20.7) first flight from Sofia (Bulgaria) to Warszawa, v.f., with 21.7. arrival pmk, charged 10gr postage due (deemed unnecessary, hence "Uniewazniono" (cancelled) hs applied), only five (!) carried  | Price Realized $1,400.00 |
 | Lot #1235 POLAND Flight Covers 1931 (20.7) first flight from Sofia (Bulgaria) to Gdynia, v.f., with 21.7. Warszawa transit and 22.7.31 Danzig arrival pmks, returned to sender, v.f., only five (!) carried | Price Realized $1,400.00 |
