Zeppelin Flights. 1925 (February 20-21), Airship (Z.R.3) Los Angeles 1st Flight to Bermuda, 2 covers with Air Mail Service. New York ''Feb.20.1925'' marking in red, one has New York, NY, the other one - Varick St. NY machine date stamps of February 18, VF, Sieger #20M, Est. $150-$200 (Image)

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 (Image)

Zeppelin Flights. 1925 (April 27-May 11), Airship (Z.R.3) Los Angeles 3 covers for Direct (2) and Return Flights to Puerto Rico, tied by Air Mail Service. New York ''Apr.27.1925'', one with extra Varick St. NY ''Apr.25'' machine cancel, return flight cover with normal ''May.6.1925'' date stamp of San Juan, appropriate receivers on the back, VF, Sieger #20T, U, Est. $250-$300 (Image)