Looks like a Japanese/Taiwanese lugged frame from the '80s. Check the Shimano 3 speed hub for a date code and you can determine it's age.
It is too new to have vintage value, the wrong brand, its been exposed to moisture and neglected, and it's a ladies bike. All of these things are deal breakers. Yard sale value $25 or less.
Any value would be in the rims (if Araya, etc), caliper set, grips, and reflector set.
It would be a good bike to tear apart and get familiar with the basic engineering - just leave the rear hub internals alone.