This 1928 - 1930 Chrysler winged radiator cap is zinc die cast, chrome plated. This cap is made for use with a Motometer. The internal threads are about 2" in diameter, and appear to be in good condition. The cap is good and solid with no pitting, but needs replated to look its best. At the back , inside a diamond it says DESIGNPAT CHRYSLER 6-3-24 (see closeup photo). See my other automotive items now offered from my collection gatd over 50 years.If picked up at our store or shipped within Pennsylvania, 6% state sales tax must be applied to the purchase price. We will ship to the United States only. No exceptions. Please email us with any questions. High bidder within the US, we accept Pay Pal, money orders ( item ships immediately upon receipt ) and personal checks ( t is a 14 day hold until check clears bank ). We appreciate payment within 7 days of auctions end. Please be sure to check out our other auctions. Thank you for looking at our auctions and have fun bidding!