Engine49guy
Member
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Okay, when I started off here I thought this was going to be more meaningful than it turned out when I got the copy of the letter out, but consider it a piece of the puzzle rather than a shocking revelation. This is a wide rib/heavy barrel K-22 shipped January 10, 1956---in Satin Blue---so the SWAG up above about when the finish changed from Satin to Bright Blue is close enough for government work!
Ralph Tremaine
Not sure if you are saying you have a 6" K22 that letters as having shipped in 56 in "Satin" blue, if so it is an anomaly I have never witnessed in the wild.
Have any pictures ?