If the ways look good including the cross slide ways, jump on it if you want it. Don't expect to cut zero taper in 12", you will be disappointed. My immediate guess is late 1940's early 1950's. Still has the star handle to engage the power feed on the apron. Later one's have a lever engagement for the clutch. With all of the polishing that was done on that lathe, I'm sure there is wear on the bed as well as in the headstock bearings. Looks like a Timken bearing headstock. Also has the two drop lever QCGB. I'd offer him $250 and see if he takes it. It more than likely will be a project lathe. Mainly, cleaning it up and replacing worn out bearings. Hopefully, the bed is in good shape. If not, walk away, unless you want to pay someone to regrind it for you. Then the real fun begins.