Pretty decrepit looking plastic Theropod/Dromaeosaurid dinosaur (Aug 28th, 2018)

Very obviously dromeosaurid (that is a theropod). I can't see any poor shape. About feather covering, it was universally accepted probably long after these models was constructed, and by other hand, they're much more difficult to build. (And by the way, probably not all theropods had feathers - tough all dromeosaurids had).
Try to build yourself a better figure! I just appreciate the big effort that the builders of these great replicas made in their time.