69 E Seat Rails - What was original finish?

Trying to clean up the last odds and ends on my 69 E restoration. What was the original factory finish on the seat rails? Top and bottom silver zinc or top chromed and bottom silver zinc? Thanks in advance.

Both silver cad to the best of my knowledge.

Thank you Ed.

Blue Chromate?

I had a set checked with a hand-held spectrophotometer - clear zinc .

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Originally Posted by Richy

I had a set checked with a hand-held spectrophotometer - clear zinc .

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The set on my '65 I chemically tested were also clear zinc

Thanks again. Off to the plater.