Soviet Union 1931 (5 May) flown cover from Leningrad to Berlin,...

Soviet Union 1931 (5 May) flown cover from Leningrad to Berlin, with arrival pmk, mixed franking with Colombian adhesives, forwarded to Buenaventura, Colombia (25.5.) and to Cali, with 28 May arrival in Berlin, fine and attractive Russia/Colombia cover

(via Philasearch.com - Soviet Union)

http://ift.tt/2FuflmC