1997 32¢ First Supersonic Flight
Issue Date: October 14, 1997
City: Edwards AFB, California
Printed By: Banknote Corporation of America
Printing Method: Offset press
Perforations: 11.4 (die cut)
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.