The Mark II is one of the best selling knives of all time. First introduced in 1966, this tactical knife is serialized for collectors. This one has a satin finished hand ground double edged partially serrated blade, .252" blade stock and .968" blade depth, hidden tang construction with a black/grey aluminum handle. This knife is Serial #052744 and was made in 1976. Comes with a brown leather sheath. Has some light scratches, wear and patina, otherwise good condition for its age.