Worldwide Stamps and Covers.

1918 Military mail/flight document from Aspern flight station with an official 2-line "K.u.K. Fliegerkourierlinie Wien-Kiew" handstamp. The Austrian military-civil air mail service connection, Vienna-Lemberg line, began in the summer of 1918. This line was extended to its most eastern outpost in Kiev in July, 1918. The Kiev connection via Proskurov (Ukraine) to Lemberg was operational for only three months and was closed before the end of World War I. The flight station Aspern was located on the outskirts of Vienna
Estimate: $500