As it sits, not worth much. Maybe $50?

Looks like a high tensile steel frame, so heavier than the more desireable Cro Moly (for example, Reynolds 501 or 531). It might clean up to a decent beater or commuter, but it needs at a minimum, new cables and cable housings, bar tape, tires, chain, freewheel, and brake pads. If you have all that stuff laying around and the ability to do the work yourself, it is a project worth doing. If you take it to a bike shop, that might add up to $100 to $200 worth of work for parts and labor, and that bike is worth maybe $100 , though in hot markets, it could go for a bit more.