The closest I have data on is a 6" S853105 that shipped 11/46. S870042 (4") shipped 1/47.

s/n 561054 (5" barrel) shipped 1/28.

Not much help on your C180xxx. I know C155209 shipped in 1950.

Here is a shot of a penciled s/n from a 1914 stock.

Attached Images

Model of 1905 Change 3 stocks (about 1910-1920) (2) (Large).jpg (179.7 KB, 39 views)

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Mike
S&WCA #3065