I have a few vintage collared shirts for sale on eBay. Links below. I am also selling some Harley gear as well if interested.
Vintage 1980's J&J Auto Racing White Polo Shirt | L | Sprint Cars | eBay
Vintage 1980's Skagit Speedway Red Polo Shirt | L | Sprint Cars | eBay
Items for sale by dfs-auctions | eBay