Case Mini Copperhead - Deep Canyon Jigged Light Purple Bone - 27161The Copperhead knife originated in the early 1900s from the Jackknife pattern, but with a bolster that bulges above the tang corners of the closed blade. This prevents the pocket knife's blade corners from snagging on or wearing out your pocket. The bolster's bulge is reminiscent of the bulges of a Copperhead snake. This knife pattern is typically equipped with a very capable Clip blade and trusty Pen blade. Manufacturer: W. R. Case Model: Mini