Single Blade 1980 CASE XX USA 5197 L SSP Stag Shark Tooth Sportsmen's Lockblade Pocket Knife. 5 inches closed. 8-1/2 inches open. Made in USA. "Case XX *****SS***** USA" (10 dot with lightning bolt S) and "5197 L SSP" tang stamps. Stainless Steel blade etched with shark image. Brass Bolsters deep-etched with a single oval Case logo. Genuine stag handle. With original box, black leather sheath, and paperwork.