Both carbs are late forties or early fifties. Maybe trucks because of the manual chokes. Chrysler and Chevy.
You'd never guess it's a truck that's used like a truck lol. Only the inner bed and tailgate are scratched though.
The one on the left is a Carter, ball and ball 1 bbl. carb and was (as mentioned) used by Chrysler corp.
As mentioned by others, the one on the left is a type BBR manufactured by Carter. If one positions the carburetor such that the fuel inlet is on one's right, the carburetor identification letters and numbers may be read at the top of the obique strengthening vane. The BBR series was used by Chrysler, I.H.C., Reo, and Studebaker. Carter's "price leader" from 1933 until the mid-1950's. Also as mentioned by others, the one on the right is a Rochester type B, probably used on a Chevrolet 6. First released in 1950, but retrofitted back to 1932. Discontinued in the late 1960's. Jon.