https://www.hollywoodreporter.com/lifestyle/lifestyle-news/henry-winkler-fonzie-happy-days-jacket-auction-1235039969/

The jacket will be sold as part of a complete Fonzie outfit that includes an original pair of blue jeans, T-shirt and biker boots. The complete outfit is expected to fetch between $50,000 to $70,000.

Henry Winkler's Happy Days The Fonz outfit auctions for $75,312, while his motorbike went for $231,562 (https://www.tmz.com/2021/12/09/henry-winkler-auction-happy-days-fonz-memorabilia/)

Winkler put some of Fonzie's most-prized possessions up for auction in part to benefit This Is About Humanity, a charity run by his daughter.

which one? he owns more thne one of them.

one is probably still in the smithsonian.