.357 Combat Magnum Stainless, Model 66, K949140. One of the magnums made in May 1970 to test the tooling for the stainless steel version. These guns are listed from time to time, but I have only seen three in the fifty plus years I have been collecting S&W handguns. These revolvers were fitted with a target hammer and shipped in a silver box. Click on the photos for a better look.

Bill