Lathe Steady Rest w/Rollers. 1-860-668-7266 in Hartford, Connecticut For Sale

Lathe Steady Rest w/Rollers. 1-860-668-xxxx
I don't know from which lathe this will fit, but here are the dimensions.
Base to center line about 6 1/4" ? could be more or less.
Base to flat where you would tighten top to bottom is 6 3/8", But I don't know if
ground clamping area would be on center-line.
Hole 3 1/2"
Center of "V" to center of base, 2 1/2"
Base 6" wide.
Raised stamping "M575"
Rollers, 1/2"
List of other items I am selling
http://hartford.backpage.com/MiscForSale/10-list-of-tools-miscellaneous-for-sale-860-668-xxxx/xxxx704