Rocket Research Institute, Flown in Rocket 2 from Nevada to California 1957

Description

Event Cover for Rocket Research Institute (RRI), postmarked July 1, 1957, Topaz, California.  The envelope was created for the start of International Geophysical Year.  ROCKETFLIGHT.  Flight was from Douglas County, Nevada to Topaz, Mono County, California.  Flap on reverse side of envelope has number 1674.  Flown in Rocket 2.
Envelope size 6-1/2 x 3-5/8 inches.  Comes from a Smoke/Pet Free home.
See condition comments.  See the pictures for the item in this auction.
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