Berlin Black overprint complete on 2 registered covers from...

Berlin Black overprint complete on 2 registered covers from Berlin 9. 10. 48 to Cincinati / USA with on the back arrival postmarks (Michel for single stamps already € 2,400.-) 1 / 1

(via Philasearch.com - Berlin, Michel Jan 20)

http://ift.tt/1GpShAa