M1A1 stock metal finish

Was metal on M1A1 stocks originally parkerized, blued, or painted black?

I have checked all the books I have but have found no mention of the finish.

TIA
John

Here is a photo of a Inland low wood M1A1 stock, this is a new stock, note the metal is parkedAttachment 22053Attachment 22054Attachment 22055Attachment 22052

Was the recoil plate made by Royal Typewriter with the rest of the metal patrs?

Quote:

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Originally Posted by Hercules Powder

I have checked all the books I have but have found no mention of the finish.

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Somewhat hidden on pps. 126-127 of Riesch's 6th editon: "All metal parts of the buttstock were originally Parkerized a smooth dark gray-green." - Bob