2c Alaska-Yukon (370).
Two covers, first used with 2c Hudson-Fulton (372), tied by "Lynn, Mass. Cliftondale Br. Jun. 1, 1912 4PM" duplex cancels on flown pioneer flight cover (AAMC 29a) to Lynn Mass., well-struck "Aero Postal Sta. Saugus Mass," circular handstamp cachet, sealed by multicolored "Hobby Club" label and Truby backstamp, slightly reduced at top, Very Fine, very scarce with these issues, second on attractive Iron Works corner card cover tied by Cambridge Mass. Jun. 2, 1909 Second Day
waving-flag machine cancel, Very Fine, very scarce, with 1990 P.F. certificate, Scott Retail for June 1, 1909 first day cover is $3,000.00
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