Real or redone case colors??

[Dean Romig]

It would surprise me to learn that those cyanide colors would be original to a 1930 Meriden Parker. It would not surprise me to learn that the gun was made of the parts Remingtom bought along with the entire inventory of the Parker Gun Works and subsequently case colored it by their methods... or it went back to Remington for a refinish at some point... or it was redone by DelGrego.

It is entirely possible that the cyanide case colors were done by Parker Bros. but...
We have seen many examples of Parker shotguns made well after 1930 and even well after the June 15, 1934 purchase by Remington of the Parker Gun Works that have been color case hardened by the bone charcoal method, and... on page 160 of The Parker Story we are informed that Remington continued to develop and refine the bone charcoal method and "After World War II, Remington replaced the bone and wood charcoal process with a cyanide process for all of its case hardening work." Has this information been absolutely disproved since the publication of TPS in 1998?