I have a steady that measures out to be for a 19.5" swing lathe. It appears to be a monarch steady any ideas? I searched for number only found a number that was cast into the base. 5-192 attached are pictures. I measured it to be 9" point of way to center of flat of other way. Then 9 3/4" from flat to split in the rest (marked in picture where i measured) anyone know of a lathe it will fit??