OK, I have picked up a large lot of single hubcaps. There's several Cadillac caps and a few Lincoln ones. I'll post pictures when I can.
1-1961 Lincoln Continental, very nice, $40
1-1967-1968 Cadillac Eldorado, very nice, $40
1-1975-1976 Cadillac DeVille/Fleetwood, nice, $25
3-1987-1988...