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40-inch Refractor Telescope 69:104 (2008-003)Series VI: Yerkes Observatory
40-inch Refractor Telescope 69:105 (2008-003)Series VI: Yerkes Observatory
40-inch Refractor Telescope 69:106 (2008-003)Series VI: Yerkes Observatory
40-inch Refractor Telescope 69:107 (2008-003)Series VI: Yerkes Observatory
40-inch Refractor Telescope 69:108 (2008-003)Series VI: Yerkes Observatory