Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - United States - Zeppelin Flights - 1925 (April 21-22), Airship (Z.R.3) Los Angeles Flight to Bermuda, 4 covers (2 - Roesslers') from NYC including three with Air Mail Service. New York ''Apr. 15.1925'' ds, one in addition with City Hall ''Apr. 13'' duplex, and one without any entry marking, all with Hamilton or St. George ''22.APR.25'' arrival ds, VF, Sieger #20N, var, Est. $350-$400