U.S.A. 1949 First Flight AM 84, Rialto to Los Angeles, cachet cover
U.S.A. 1949 First Flight AM 86, Brainerd to Hibbing, cachet cover
U.S.A. 1949 First Flight AM 90, Fairbury to North Platt, cachet cover
U.S.A. 1949 First Flight AM 94, Syracuse to Albany, cachet cover
U.S.A. 1949 First Flight AM 94, Washington to Pittsburg, cachet cover
U.S.A. 1949 First Flight AM 97, Baltimore to Pittsburg, cachet cover
U.S.A. 1949 First Flight AM 97, Connellsville to Washington, cachet cover
U.S.A. 1949 First Flight AM 97, Hagerstown to Pittsburg, cachet cover
U.S.A. 1949 First Flight AM 97, Harrisburg to Pittsburg, cachet cover
U.S.A. 1949 Tuscon Airport Dedication cachet cover
U.S.A. 1960 Arctic, Ellesmere Ice Shelf cachet cover
U.S.A. 1960 Arctic, Ellesmere Ice Shelf cachet cover, 5 x 1c stamps
U.S.A. 1962 U.S. Naval Ross Ice Shelf Antarctic Survey cachet cover
U.S.A. 1963 5c on cover, U.S.N Pole Station Antarctica cancel
U.S.A. 1963 Airmail cover, USARP cachet. U.S.N Pole Station Antarctica cancel
U.S.A. 1963 USARP, U.S.N.S. Eltanin, National Science Foundation cachet cover
U.S.A. 1963 USS Atka Operation Deep Freeze, signed cachet cover
U.S.A. 1963 USS Burton Island Operation Deep Freeze cachet cover
U.S.A. 1963 USS Glacier (AGB-4) Operation Deep Freeze, cachet cover
U.S.A. 1963 USS Hissen (DER-400) Operation Deep Freeze, cachet cover
U.S.A. 1965 Air New Zealand DC-8 Flight cover, Los Angeles - Nandi Fiji
U.S.A. 1972 USAF Titan -3b, Booster, Vandenberg AFB cachet cover
U.S.A. 1975 10th Anniv. of Titan-3C launch, Experimental Payload cachet cover
