Combat Magnum, K260190, shipped on May 1, 1956 with a dark blue presentation case numbered to the revolver. I am confident the stocks are original as they are numbered (a few early pairs were) 260 380 on the right stock panel. I believe it was S&W's intention to number the stocks to this model, but quickly decided it was not necessary and so they used up the numbered stocks at random. All of the early Combat Magnums I have seen were shipped with diamond target stocks with the relieved area on the left panel.

Bill