1920 - 1929
Michel 287+, cancelled postal stationay
1927. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CLEVELAND - PITTSBURGH ROUTE McKEESPORT APRIL 21 1927. 1 CENT + 1 c + 8 CENT AIR MAIL.
Michel 389B, cancelled postal stationay
1928. FIRST FLIGHT INAUGURATING AIR MAIL SERVICE FEB 6 1928 DALLAS - SAN ANTONIO AIR MAIL ROUTE WACO, TEXAS. 2 CENTS + 4X 2 CENTS HARDING.
USA, cancelled postal stationay
1926. FIRST FLIGHT AIR MAIL PHILADELPHIA - NEW YORK SESQUICENTENIAL ROUTE PHILADELPHIA PA. SEPT 4, 1926. 3 X 1 CENTS.
USA, cancelled postal stationay
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL BOSTON - NEW YORK. BOSTON MASS. JULY 1, 1926. 4 X 2 CENTS.
USA, cancelled postal stationay
1928. FIRST FLIGHT LA PORTE, IND. JULY 17, 1928. AIR MAIL CAM 27 BAY CITY - CHOCAGO.
USA, cancelled postal stationay
1927. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CLEVELAND - PITTSBURGH ROUTE PITTSBURGH PA. APRIL 21, 1927. 4 X 2 CENTS.
USA, cancelled postal stationay
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL BOSTON - NEW YORK ROUTE. BOSTON MASS. JULY 1, 1926. 4 X 2 CENTS.
USA, Cover
1927. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CLEVELAND - PITTSBURGH ROUTE PITTSBURGH PA. APRIL 21, 1927. 5 CENTS LEXINGTON.
USA, Cover
1929. FIRST FLIGHT AIR MAIL CAM 29 NEW ORLEANS - HOUSTON. NEW ORLEANES LA. JAN. 23, 1929.
USA, Cover
1928. FIRST FLIGHT ALBANY - BUFFALO JUNE 1, 1928 ROCHESTER, NY. AIR MAIL CAM 20. 5 X 2 CENTS.
USA, Cover
1928. FIRST FLIGHT CLEVELAND LOUISVILLE CAM 16 LOUISVILLE, KY AUG. 1, 1928.
USA, Cover
1928. FIRST FLIGHT CLEVELAND LOUISVILLE CAM 16 SPRINGFIELD, OHIO MAY. 1, 1928.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL Las Vegas - Salt Lake City. Las Vegas NEVADA, APRIL 17, 1926.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL SEATTLE - LOS ANGELES ROUTE. PORTLAND, OREGON SEPT 15, 1926.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CHICAGO - DALLAS ROUTE. OKLAHOMA CITY OKLA. OREGON MAY 12, 1926.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL ROUTE NO. CAM. 10. JACKSONVILLE FLA. APRIL 1, 1926.