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GLENN L. MARTIN - COMMEMORATIVE ENVELOPE SIGNED CO-SIGNED BY: WILLIAM K. EBEL, ELLIS SHANNON - HFSID 164434

GLENN L. MARTIN, ELLIS H. SHANNON and WILLIAM K. EBEL All three sign an envelope commemorating the First Flight of Mars--World's largest Flying Ship! Commemorative Envelope signed: "Glenn L. Martin", "William K. Ebel" and "Ellis H. Shannon", 9½x4.

Sale Price $306.00

Reg. $340.00

Condition: lightly creased
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GLENN L. MARTIN, ELLIS H. SHANNON and WILLIAM K. EBEL
All three sign an envelope commemorating the First Flight of Mars--World's largest Flying Ship!
Commemorative Envelope signed: "Glenn L. Martin", "William K. Ebel" and "Ellis H. Shannon", 9½x4. Air Mail envelope bearing 6-cent Air Mail stamp, postmarked Middle River, Maryland, July 3, 1942, addressed to L.E. Albert, U.S. Secret Service, Washington, D.C. "The Glenn L. Martin Company" envelope cacheted: "First Flight/This cover carried on first/official flight of the 'Mars',/built by The Glenn L. Martin Co./for the United States Navy./Worlds (sic) Largest/Flying Ship". WILLIAM K. EBEL was the chief engineer and pilot of the Mars. ELLIS H. SHANNON was the co-pilot. The 70-ton Mars patrol bomber had a 200-foot wingspread, four 2,000-horsepower engines and an unofficial range of more than 7,000 miles at more than 200 miles an hour. GLENN L. MARTIN established one of the first airplane factories in the United States in 1909. During WWII, he chiefly built transoceanic flying boats and bombers such as the B-10 and B-26 Marauder. Some tears at top edge, paper intact but for left corner. Lightly creased and soiled. Otherwise, fine condition.

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