FREE: U.S. #3173 1997 32c First Supersonic Flight First Day of Issue

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U.S. #3173 First Day of Issue
1997 32c First Supersonic Flight

Issue Date: October 14, 1997
City: Edwards AFB, California

Printing Method: Offset press
Perforations: 11.4 (die cut)
Color: multicolored

This stamp pictures an X1 aircraft, the first plane to fly faster than the speed of sound. Air Force Captain "Chuck" Yeager was at the controls. The first day ceremony for the stamp, commemorating the 50th anniversary of the flight, took place at the Air Force Base where the historic event happened.

This stamp includes microprinting for security. With a magnifying glass, "X-1" can be seen on the horizontal stabilizer on the tail and a row of three "USPS" is above the wing. Another microprinting caused controversy because on the nose of the plane is written "Glamorous Glenna" a misspelling of Yeager’s plane "Glamorous Glennis", named after the pilot’s wife.
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