#4018 – 2006 $4.05 X-Plane, Priority Mail

U.S. #4018
2006 $4.05 X-Plane
Priority Mail
Issue Date: March 17, 2006
City: New York, NY
Printed By: Banknote Corporation of America for Sennett Security Products
Printing Method: Lithographed with hologram
Perforations: Serpentine die cut 10 ¾ x 10 ½
Color: Multicolored
 
The X-15 rocket plane appears on this Priority Mail stamp. The X-planes were experimental U.S. aircraft created to test the technology of supersonic and space flight. The X-1 was the first plane to break the sound barrier (1947).
 
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U.S. #4018
2006 $4.05 X-Plane
Priority Mail

Issue Date: March 17, 2006
City: New York, NY
Printed By: Banknote Corporation of America for Sennett Security Products
Printing Method: Lithographed with hologram
Perforations: Serpentine die cut 10 ¾ x 10 ½
Color: Multicolored
 
The X-15 rocket plane appears on this Priority Mail stamp. The X-planes were experimental U.S. aircraft created to test the technology of supersonic and space flight. The X-1 was the first plane to break the sound barrier (1947).