Decent sized, 5" capacity, poor shape, about 100lbs. Owner didn't remember what lathe it went to, but he had owned a Colchester 13x36 mk1 and 15x50 8000 series. May or may not be from those. Only casting Mark is "976" or "979," can't tell last digit. Something tells me it's older than either of those machines, though. One of the most heavy duty rests I've seen.