Colour code for '70 alloy wheels?

["Matjaz Kos" <matjaz.kos@domain.elided>]

I just got my hands on a set of 17x7 five spoke alloys dated on 1970's. Does
anyone know the original colour code for these type of wheels? What do you think
about polishing and crome plating the wheels?

Thanks

Matjaz

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