Author
Title
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author
d
draper-henry
book-on-the-construction-of-a-silvered-glass-telescope-fifteen-and-a-half-inches-in-aperture-and-its-use-in-celestial-photography
read-on-the-construction-of-a-silvered-glass-telescope-fifteen-and-a-half-inches-in-aperture-and-its-use-in-celestial-photography
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