Behr, Alfred, 1913-2008

2 results.

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 16:3174 (2008-003)
Series VI: Yerkes Observatory

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

Yerkes Observatory Buildings, Instruments, Equipment, Grounds

24-inch Reflector Telescope 16:3192 (2008-003)
Series VI: Yerkes Observatory

2 results.