Sporting Classics article on the Del Gregos

[Dean Romig]

I agree with you Bill. I have only read and heard from experts on the subject that Parker Bros. color case hardened their shotguns using the bone charcoal method.
However, Remington while they owned the Parker Gun Works at the facility in Meriden, may have been using the cyanide process on the lower grades. This, if it happened, might support DelGrego’s claim.





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[Wild Skies]

Per The Parker Story, Remington acquired the Parker Bros. gun business in 1934. They continued using the bone and wood charcoal casehardening process on all Parker guns made and assembled until ceasing operations in 1942. After World War II Remington replaced the bone and wood charcoal process with a cyanide process for all its casehardening work. There weren't a lot of Remington Parkers produced with the cyanide finish.