2nd Model Fat Guard SOG knife that was presented to Chief SOG John Skip Sadler. The knife measures about 10 1/2 inches overall with a chromed six inch blade that was engraved: PRESENTED TO COLONEL JOHN F. SADLER, FROM OP-40 with a Militayr Assistance Command Vietnam insignia on one side and a MAC V SO bomb burst on the other. I purchased the piece from the veteran who stated he would not carry a knife unless he sharpened it which can be seen in the pictures and has a replaced pommel nut. The piece will come with a reprinted picture of the veteran during his tour. John Sadler was the last Chief SOG and served 1970 – 1972.