Early 20's Buick Radiator cap, used up to 1925 on the Standard and the Fours & Sixes before then? I think.There is a dent on the top, but this will come out.I can post this and I accept PayPal.
Here we have one of the quite rare small Autovacs, the tank is 3 inches diameter and about 6 inches tall.It is in perfect working order and I have just replaced it with a bigger Autovac on my car because I live in a very hilly area and the little tank doesn't hold enough fuel to get all the way up the longest hills without stopping or lifting of..