Shelby owned that wheel company once. It was sold in the 70's and the name was
used on a bajillian types of slotted mags and disco era wheel designs. There is a thread
to the company that made the cobra.... but the thread is long and thin. I have my garden
hose wound up on one and I am quite proud of it. If they are in nice shape they are probably
worth as much as any other similar looking wheels from that time. Not much more.