Serial Number: #9 5991
 is a 1989 Custom 24, with a birds-eye maple top, mahogany back and neck, Brazilian Rosewood fretboard with Moon inlays, Standard Treble & Bass pickups, master volume, with a sweet switch, 5-way rotary switch, PRS Winged Locking Tuners, Gen I tremolo, finished in either Whale Blue, or Royal Blue, with nickel hardware. 
Great sound
excellent condition and very good playability
all original, no tags
I wrote to PRS who gave me the info on the model and its authenticity in all its parts; copy of mail included.
comes with original black hard shell case.