Astrograph

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  • Clyde William Tombaugh created his photographic plates using this astrograph
    Clyde William Tombaugh created his photographic plates using this astrograph
  • Tombaugh compared his photographic plates using this blink comparator
    Tombaugh compared his photographic plates using this blink comparator
  • Bruce Double Astrograph, Heidelberg
    Bruce Double Astrograph, Heidelberg
  • Double astrograph, Heidelberg
    Double astrograph, Heidelberg
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