This is a 110 volt a.c. motor drive from a Vixen Polaris mount used by Celestron for their 4.5" and 6" reflectors of the late 70s early 80s. The motor works fine and comes with the mounting bracket. It will probably also work with the EQ-3 and CG-4 clones.
$25.00 shipped CONUS. I will be unable to respond to e-mail until Saturday AM PST