My grandfather in law is wanting to sell his Reo ton and half truck. We don’t have the title anymore and I’m trying to figure out what year the truck is. I have the serial number, model number, and engine serial number. I have looked all over the internet trying to find a website where I could look up the serial number but I haven’t had any luck. We think it’s between a 46-48 but we would prefer to have an exact year before posting it for sale. Can anyone help me??