From Bill Possel:

  In 1904 another observatory building was added and the new owners, the University of Cincinnati, purchased a 16 inch
Alvin Clark & Sons.  During the 1900’s both telescopes were active in minor planet research and public education.

Today the Cincinnati Observatory Center, a partnership between the university, the observatory’s neighborhood residents,
and the local amateur astronomers, manages the buildings and grounds.  These magnificent telescopes are still active today
with classes for local K-12 schools and amateurs giving public viewing sessions.  Also, the Friends of the Observatory and the
Cincinnati Astronomical Society are working to develop techniques to use the scopes for variable star measurements and
extrasolar planet search.  The University of Cincinnati continues to fund the observatory but the center hopes to run operations
independently within the next five years.  The local community and the amateurs seemed determined to keep this going and I
believe the “O” will continue to inspire future astronomers for years to come.  If you’re ever in the area, make sure you visit it.
For my information, their website is http://www.cincinnatiobservatory.org/

Notice the huge Right Ascension setting circle.

Below is a closeup of the drive mechanism, The Clarks were known for machine work that was as much art as science.
                       NCAS Home