That's the standard Seig C2 lathe, sold by Harbor Freight and others.
Everything you could possible want to know about it can be found here.
mini-lathe.com home page
If you need any parts for it, go here.
LittleMachineShop.com - tooling, parts, and accessories for bench top machinists
It looks well abused, but if it's yours for some beer, that's a great deal. So long as it's not really good beer.