X-15 Test Flight # 132 / Date MAY-18-1965, Airmail cover 
Pilot : John B. McKay ( often stamped as Jack ) 
Cancel : Edwards Air Force Base AFB CA California
Cancellation Type: Machine Cancel  
Cachet Style : Boy Scout Rubber stamped Mono-Color Flight Cachet 
Addressed : No un-addressed 

Shipped 1st class USPS 
All Sales Final 
Yes we do combine shipping 
See future postings for : 
X-15 covers, Signed X-15 covers , early Missile launch covers , STS Shuttle covers and more.
please feel free to contact me for specific flight # or flight covers.