This exact knife is pictured on pg. 375 of Norm Flayderman's monumental text The Bowie Knife. This knife measures 22-3/4" overall with a 17-3/4" blade, and is pictured to the far left in photograph of five of these monsters made circa 1850-1860. Knife is made by and marked on ricasso "WM. JACKSON & CO. / SHEAF ISLAND WORKS / SHEFFIELD". Ricasso is marked with red paint "No. 134", probably meaning this knife was also from the famous Bob Abel's collection prior to Mr. Flayderman's. SIZE: PROVENANCE: Ex-Robert Abels. Ex-Norman Flayderman Collection; The Estate Collection of Phil A. Bleakney, Jr. CONDITION: Good to very good overall. Blade is gray with worn point, scattered areas of staining & pitting. Large thick German silver crossguard is loose & there is about 1/2" chip in one grip which can also be seen in Flayderman book. 49059-218 JS (2,000-3,000)