The third set of bottle braze-ons was a sign of a touring frame, as are the cantilever brake studs.

I don't know the frame, but the rear rack mount points on the seat stays doesn't look very common to me, and may help someone identify the frame.

I would hop over to C&V to get people that know quite a bit about older frames.

And other than the steering tube, definitely worth saving. Depending on which frame it ends up being, I would possibly even see about replacing the steering tube to keep the fork.