The CAM-2 cannot distinguish the specific agent producing the response.The role of the CAM-2 can be extended with the optional Field Alarm Module (FAM), which enables the CAM-2 to be used as a sentry alarm.Cover flown on the first day of scheduled Air Mail Service in the U. Although these extra fee stamps were issued for use on mails to be serviced by air, the legend "AIR MAIL" did not appear on any USPOD stamp until eight years later when the 10-cent C-7 rectangular was issued on February 13, 1926, two days before the first ever mail flight under contract with a commercial carrier was made on February 15, an eastbound trip between Detroit and Cleveland over CAM Route 7. The transcontinental mails were originally flown only during daylight hours while being entrained at night, although on February 22, 1921, a nighttime leg on this route (Omaha to Chicago) was flown for the first time with Jack Knight as the pilot. Ovington flew 640 letters and 1,280 postcards from the Aero Club of New York's airfield located on Nassau Boulevard near Stratford School in Garden City (Long Island), New York, to the nearby Mineola Post Office in Mineola, located less than six miles away. Additional monochromatic stamps of similar design to C-3 were also issued contemporaneously with these rate changes in 16 cent (green) and 6 cent (orange) denominations.When the USPS began to service all international First Class mails by air without additional charge in 1995 and simultaneously eliminated Surface (or "Sea") service which provided transportation by ship, it also announced that the words "Air Mail" would no longer appear on any U. On board with them was a mail bag containing 60 letters, making this the first international U. Hubbard later flew the first international contract mail route, from Seattle to Victoria, British Columbia, which began on October 15, 1920.
Balloon mail was also carried on an 1877 flight in Nashville, Tennessee. Unfortunately the bag broke when it hit the ground, but all of the mail was eventually recovered and forwarded by regular channels with the cancellation reading "AEROPLANE STATION No.1 - GARDEN CITY ESTATES, N. Fleet and operating on a route between Washington, D. (Washington Polo Grounds) and New York City (Belmont Park) with an intermediate stop in Philadelphia (Bustleton Field). Unfortunately, however, he broke the prop on his airplane when he made a hard landing, so the 140 pounds of mail he was carrying had to be trucked back to Washington. After a number of "pathfinder" flights made in September, November, and early December, the first flight providing scheduled east-west service between New York and Chicago occurred on December 17, 1918. The red and blue stamp's vignette depicted Army JN-4 #38262, the aircraft that made the first Air Mail flight from Washington two days later, and the 24 cent fee it represented was apportioned at two cents for postage, 12 cents for air service, and 10 cents for Special Delivery.Operated by Varney Air Lines (which later became part of United Airlines), the first Eastbound flight over CAM-5 was made successfully using a Laird Swallow biplane piloted by Leon D. The first Westbound flight that afternoon was much less successful, however, as it was forced 75-miles off course by a storm en route from Elko to Boise before making a forced landing near Jordan Valley, Oregon.The plane and pilot Franklin Rose remained missing for two days until Rose managed to reach a telephone on April 8 after carrying the 98 pounds of mail for many miles on foot and on a horse borrowed from a farmer.Louis, Missouri, (where he had been working as a flight instructor) to first lay out, and then serve as chief pilot for the newly designated 278-mile CAM-2 to provide service between St.Louis and Chicago (Maywood Field) with two intermediate stops in Springfield and Peoria, Illinois.