This is a Case Tested XX pattern # C61050L SAB large Coke bottle lock back style pocket knife made between 1920 and 1940. It measures 5 1/4 closed and has pretty green bone (cow bone) handles with no chips or cracks.
The blade is used with light pitting and staining but mostly full with good snap and tight lock up. There is a little side to side movement when opened. It is tang stamped CASE over TESTED XX. The item "Vintage Case Tested XX C61050L SAB Large Green Bone Lockback Knife'20-'40 Exc" is in sale since Monday, May 11, 2020. This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Folding Knives\Vintage Folding Knives\Factory Manufactured".The seller is "dodgin2" and is located in Cleveland, Virginia. This item can be shipped to United States.