.
Supposed to be 1939 Ford pick-up. This is a very odd "8" on this cap in that MOST caps with any sort of "V8" has the "8" situated upside down with the large circle on top, to accentuate the widening "V". I looked at well over a hundred '39 Standard
passenger car pictures this evening and did not see that cap on even one of them, FWIW! DD