Originally Posted by Targets Guy
I have a M&P 4" barrel s/n C113082 that shipped in Sept 1950. I also have a M&P 4" barrel s/n C155209 that shipped in May 1950.
That is very interesting. I have C152420 and it shipped in February, 1951. And C218272 shipped in September, 1952. But C226xxx shipped in April, 1953. That is why you cannot extrapolate the average number that shipped each year, check nearby numbers and state that a particular gun shipped in a certain month or even a two month bracket. All you are doing there is making a WAG
(emphasis on the first two words!). Shipping dates are often all over the map. There simply is no way of knowing when C179924 shipped without having Don or Roy check the shipping records. We can say it probably
shipped in the 1951-1952 period. Anything more than that is a guess
As for the "CN" I think Jim Mace has it right. The N is the nickel finish indicator and someone inadvertently put it between the C and the rest of the serial number. There was no CN prefix.