Whatever it is, it is a carefully made frame with nice braze-ons. (except the messed-up cable exit ferrule) The paint is in good shape - if you can get the rest of that hideous yellow off without messing up the paint under it nor the decals, and clean it up, it would be very presentable. Hopefully it fits either you or your girlfriend. Whoever built it, it's nice, and if it really is SLX, that would be a bonus and raise the value a bit more.