309 - Clyde Tombaugh ANSNate D. Sanders, Inc.
Clyde Tombaugh autograph note signed on a photocopy of a book review of his 1980 book: ''Out of Darkness: The Planet Pluto.'' Note, ...
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310 - Clyde Tombaugh Pluto DSNate D. Sanders, Inc.
Exciting account by Clyde Tombaugh of the hours leading up to his discovery of Pluto. Typed 8.5'' x 11'' document signed ''C...
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311 - Tombaugh Pluto SketchNate D. Sanders, Inc.
Interesting sketch of Pluto's orbit by Clyde Tombaugh, the astronomer who found the dwarf planet. Hand-drawn in pencil and blue pen upon an 8.5&...
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316 - Watson and Crick SignaturesNate D. Sanders, Inc.
Nice, clear signatures by James Watson and Francis Crick, who, along with Maurice Wilkins, were awarded the Nobel Prize in 1962 for discovering DNA. W
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