Hard to say with the photos. Could be an Arboga or one of several other European makes although the paint looks new enough to be some Chi-Wan aberration. The base does sorta resemble a Bridgeport clone but the ram/head certainly isn't. Best bet is to find any nameplates with COO writing on them, that might help you track the country it was made in. From there go to
https://lathes.co.uk/#gsc.tab=0 to look up candidates with photos, it's a good website for info.
If the electric motor is still good and all the needed components/parts are there you ought to grab it if it's dirt cheap and it ought to be. If the owner never put it back together then nobody knows if it's worth more than scrap iron prices. The owner wants it gone so he's already decided that it will never be assembled and tested. You'll be taking a big chance on this becoming a boat anchor so lowball it. I've worked with a number of oddball milling machines and can perhaps help identify this one if you can at least get the head back on with some photos. You'll also want to identify what the spindle taper is (tooling included?) because some tool holders have absurdly expensive/scarce tapers that should be figured into whether to take it or not. There's a slew of other things (tapered gibs, motor couplings, drive belts, lead screw condition, wiring voltage, etc.) to consider.
Do you have any experience with machine tool building? Have you run a milling machine before? Get some more info off a nameplate on the machine before deciding if you want this project (because it is one). It may be worth the trouble, it may not.