At first glance, this appears to be a run of the mill Early GT 24" Cruiser. Sure it has some cool components for a survivor; Early GT Cruiser Bars, Campy Record High Flange Hubs with Track Axles laced to 7x Hoops, GT Block Stem, JMC Straight Post, DX Pedals, Tuf Neck Disc, etc., but when you look closely, very closely the true history of this bike is revealed.
It actually started out life as a very early GT 26" Cruiser that sometime in the last 25+ years, had its dropouts cut off, seat stays and chain stays cut and shortened at the rear, and the rear most portion of the piercing top tube cut off and rewelded at an angle that would work for a 24" wheel.
The fact that someone went to so much trouble to cut and rework this GT 26 would lead you to believe there were no other options for a GT 24 at the time.