,,,,,a friend brought me a pretty nice 4 screw K-22 and the serial number is in the K 306,96x range and best I can find is that around K 317,xxx the model numbers became stamped on them,,,any idea about when ( time frame) this occurred??? thank you

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dan
NRA Benefactor,PMA

1957 roughly for both numbers

Model numbers were designated in May of 1957. But they didn’t show up stamped on guns until mid to late in 1958, especially the slower sellers.

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Jim
S&WCA #819

dant

The K-22 Masterpiece you asked about (assuming a 6" barrel) most likely shipped in 1958. K-22 K311533 shipped in January, 1958, and I show some in that same range that also shipped in early 1958, including a K-38 at K304692 that shipped in February, 1958.

The lowest known number on a K-22 Masterpiece marked as a Model 17 was K326533 and it shipped in November, 1958.

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Jack
SWCA #2475, SWHF #318

The 4 screw frames have become somewhat of an obsession with me as they span the non-model marked guns through the model numbered guns. There is a lot of information on these, right here on the forum.