Not a Specialized, GT triple triangle design maybe an early one or a rip off like an Apollo, should also be noted that the forks are totally buggered :facepalm:
That looks like a steel GT indeed. However personally I'd stay clear of it just because of the forks. A hit that's hard enough to bend those, can do some less obvious damage as well (warped frame, oval headtube, damaged headset, etc etc).