Without knowing if the sign is a 12" repop, I can't imagine anyone being able to give an honest value on it.
The earliest repops of the Sinclair "Dino" I remember seeing was in the early 70s.... One could drive almost anywhere in Fayetteville and Hope Mills and see them.. As they were sold in the Main PX at Bragg...
If it is original, I would value it in the range Bob suggested, maybe somewhat less... $75-$110... To pay $125, one would have to be very green as these signs are on ebay and in auctions continuously.... But that is just my opinion......
