Edwin Hubble Signed First Day Cover 1948First Day Cover Signed, “Edwin P. Hubble”, 1 p., 6.5” x 3.5”, postmarked Palomar Mountain, California, August 30, 1948, bearing a Palomar Mountain Observatory postage stamp. Dedication of the 200 Inch Telescope – June 3, 1948. Fine condition.
Edwin Powell Hubble (1889-1953) was an American astronomer who revolutionized the field of astrophysics. His research helped prove that the universe is expanding, and he created a classification system for galaxies that has been used for several decades.
This item comes with a Certificate from John Reznikoff, a premier authenticator for both major 3rd party authentication services, PSA and JSA (James Spence Authentications), as well as numerous auction houses.
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