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Mammoth 7:67 (2008-242)Series VI: Yerkes Observatory
Mammoth 7:68 (2008-242)Series VI: Yerkes Observatory
Mammoth 7:69 (2008-242)Series VI: Yerkes Observatory
Mammoth 7:70 (2008-242)Series VI: Yerkes Observatory
Main Observatory 16:1600 (2008-003)Series VI: Yerkes Observatory