Hand written number

[TimG]

Does anyone know why a 1965 fuel injected Corvette with all RPO options would have the number 239 hand written in the COPO section of the build sheet?
This car has off road exhaust and special suspension, but no other unusual options. The interior and exterior colors are nothing unusual, either. There's just nothing on the car to indicate anything COPO, but 239 is clearly written in.

[PeteLeathersac]

Wasn't Copo, Fleet & Shop Orders all written in the same box? .
Could be the Line-Job number noted which kept the guys on the line straight on which car they were working on before enough of a car was there? . Not sure on coupes but I think I remember Noland Adams book showing them on the rear of the tub on roadsters....visible only before the body panels were on? .

~ Pete