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sgms · December 30, 2012, 05:15 PM

Ok Workhorse the S&W m64 started production in 1970 with a tapered 4 inch barrel, in 1974 the 3 inch barrel was introduced, 1991 the 3 inch barrel became the standard. The 64-5 began production in 1988 with 3 and 4 inch barrels. Can not tell you date by serial number as I cannot find the CAH prefix on my list. But the 3 letter 4 number serial numbers started getting used in the 1980's.

December 30, 2012, 05:15 PM	#5869
sgms Senior Member Join Date: May 30, 2010 Location: Arizona or Ohio depending Posts: 1,021	Ok Workhorse the S&W m64 started production in 1970 with a tapered 4 inch barrel, in 1974 the 3 inch barrel was introduced, 1991 the 3 inch barrel became the standard. The 64-5 began production in 1988 with 3 and 4 inch barrels. Can not tell you date by serial number as I cannot find the CAH prefix on my list. But the 3 letter 4 number serial numbers started getting used in the 1980's.