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There were several factory options. Do you know what your car came with originally?
The stock steel wheels could have various hub caps.
Base "dog dish" or "poverty" wheel covers w/ body color painted steel wheels:
Standard covers:
Deluxe covers:
Wire wheel covers:
Then you could also get Styled Steel wheels (with or without GT center caps and in Argent or chrome finish)
Then there's the Shelby 10-spokes, which weren't Ford factory, but very popular.