Lot 4070
Russia 1935 Moscow-San Francisco flight 1r on 10k dark brown (C68), on 1935 (Aug. 31) registered "Rosenberg" envelope to Berlin, with Sept. 2 receiver backstamp, Very Fine.
Estimate 500 - 750
Expertization: 1997 Mikulski Certificate.
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| Realized $1,300 |
