Single Blade Doctor's Knife. 3-5/8 inches closed. 6-5/8 inches open. Made in USA. " x*x CASE XX x*x*x " (with lightning bolt S) and "USA 6185 SS" tang stamps. Oval long-C "CASE XX" flag shield. Stainless Steel blade. Pitch black jigged bone handle. Nickel Silver bolster. Brass liner. With original box and paperwork.