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Report of Comet Committee 1909-1913 : with index catalogue of all photographs of Halley's Comet (1915)
[S.l.] : American Astronomical Society · leaf 97
PLATE XXII … No. 45. May 23d 18» 38mHalley's comet
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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