They probably don’t exist. I looked up the 58-60 Lincoln, 14” but on a 5” pattern; odd. Plenty of that combo on mid sixties GM big car. I’ll just buy original new 15” tires.
Thanks friends. Looks like Imperial had 14” wheels on a 5.5 pattern. I don’t know if that changed when that brand became just a Chrysler. I’m pretty sure the 58 to 60 Lincoln also shares this size. I know this might seem odd to some, but 14” was the most popular tire from 1957 into the 70’s. It’s the easiest way to lower a car. Most of the popular custom car wheel cover “hubcaps” styles are 14”.
What's not mentioned is the size of the hub/register. Found this out trying to fit '72 Buick wheels on a '63. Same BC, different size hole. Better to get tires to fit the wheels on it.