North and mittle America
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.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL ATLANTA - MIAMI ROUTE. FORT MEYERS, FLA. SEPT 15, 1926.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CHICAGO - DALLAS ROUTE. MOLINE ILL. MAY 12, 1926.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CHICAGO - DETROIT - CLEVELAND. DETROIT MICH. FEB 15, 1926. RETURNED!.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL CHICAGO - ST. LOUIS. ST. LOUIS MO. APRIL 15, 1926.
USA, Cover
1926. FIRST FLIGHT INAUGURATING CONTRACT AIR MAIL ROUTE NO. CAM. 10. FORT MEYERS FLA.. APRIL 1, 1926.
USA, Cover
1928. FIRST FLIGHT NEW YORK - CHICAGO. JUNE 4, 1928 DETROIT MICH. AIR MAIL CAM. 17.
USA, Cover
1928. FIRST FLIGHT ALBANY - BUFFALO JUNE 1, 1928 SCHENECTADY NY. AIR MAIL CAM. 20.
USA, Cover
1928. FIRST FLIGHT ALBANY - BUFFALO JUNE 1, 1928 SCHENECTADY NY. AIR MAIL CAM. 20.
USA, Cover
1928. FIRST FLIGHT ALBANY - BUFFALO JUNE 1, 1928 SYRACUSE NY. AIR MAIL CAM. 20.
USA, Cover
1928. FIRST FLIGHT ALBANY - BUFFALO JUNE 1, 1928 UTICA NY. AIR MAIL CAM. 20.
USA, Cover
1929. FIRST FLIGHT AIR MAIL CAM 29 NEW ORLEANS - HOUSTON. NEW ORLEANES LA. JAN. 23, 1929.
USA, Cover
1927. FIRST FLIGHT INAUGURATING AIR MAIL SERVICE NOV. 22 1927. CAM NO. 9 AIR MAIL ROUTE MADISON, WIS.
USA, Cover
1927. FIRST FLIGHT INAUGURATING AIR MAIL SERVICE DEC. 17 1927. AIR MAIL ROUTE INDIANAPOLIS, IND.
USA, Cover
1927. FIRST FLIGHT UNDER CONTRACT NEW YORK - CHICAGO NIGHT FLIGHT. SEP. 1 1927. TRANSCONTINENTAL AIR MAIL ROUTE CLEVELAND, OHIO..
USA, Cover
1927. FIRST FLIGHT UNDER CONTRACT NEW YORK - CHICAGO NIGHT FLIGHT. SEP. 1 1927. AIR MAIL ROUTE CHICAGO, ILL.