References that may be of interest;
1. Metals Handbook 1939 (American Society for Metals), p.1120 for a description of the Carbonia finish.
2. A History of The Colt Revolver by Haven and Belden (1940), pages 500-503 for a description of the blueing method used by Colt at that time.
The processes are similar but nowhere does the Colt reference refer to Carbonia oil.
Also;
The Custom Revolver, by Hamilton Bowen (a superb !! book).
S&W Sixguns of the Old West, by David Chicoine.
Frank S. SWCA 2052.
"We can't stop growing old but we can choose to remain immature."
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