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I have had a few requests for information about the C marking on certain parts. I have a batch of parts made by Colt. This contract started in 1952 and went on into 1953.
Notice the C marking:
https://www.milsurps.com/images/impo...saf_mark-1.jpg
(The C marking used by Colt was also put on certain M16A1 parts.)
Below is the contract packing:
https://www.milsurps.com/images/impo...grip_saf-1.jpg
Thanks, Bill. I knew they were post-WWII, but did not know specifically what year(s) they were made.
Glad you can use the information.
There was another one I found. It was made by Hesse Machine and Manufacturing in Boston, Mass. Unfortunately I no longer have the contract wrapper.
These were rewrapped circa 1970-71 by one of the arsenals. The original contract was either 1966 or 67. I was told they were precise castings.
https://www.milsurps.com/images/impo...grip_saf-1.jpg
How about the C in square barrels?
The Square/C barrel mark became the proof mark as well as identifying the barrel as being manufactured by Colt. This is a post WWII barrel with the Square/C proof mark, with COLT .45 AUTO marking on the top of the chamber. We know the hammers were not proofed, so maybe it was a case of not throwing anything away that might be used again, and the Square/C was later used to mark contract parts.
It appears this one was struck more than once, and with two different size dies.
https://www.milsurps.com/images/impo...01/z4qhi-1.jpg