Something that the Historic plate websites don’t seem to cover is plates for Trucks. I have had different plates on my trucks than the car, and that’s also the way it was when I was in Texas. The modern Texas plates had “TEXAS TRUCK”. I don’t know what the requirement is to qualify for a truck license plate, or what years that was enforced. My ½ ton truck had truck plates. Now I think the car and truck plates are the same in Washington. There is currently a shortage of plates and they are issuing non-embossed plates.
Here is a site of a collector of Washington plates:
https://dannyslicenseplates.com/county-codes/I don’t see mention of truck plates there also.
I did find some 1947 Washington truck plates for sale on-line. They start with TK with the K being smaller than the T. That is followed by the county code and then the numbers on the right. The dennys web site shows the county codes.
I’m thinking the Suburban would get the car plates as the title designates it as such.
