I just went to the truck to see if there were any other identifying features and I don't think there is anything else that would identify the truck as a Cameo. The chrome on the fenders shows that it is a 3100. I checked the plate on the cab in front of the LH door, and it doesn't identify the model. It just states the motor is rated at 109 HP, and the GVW is 5000 lb.
Bob