This is a rare Cherusker Messer Schanz Friedrichstal Anduranz folder. It features a Puzzle Lock which is very similar to the Bram Frank design, but of European origin - functions as if it were a top side linerlock. The lockup solid! This knife has 8Cr13Mov steel, comparable to AUS8A. A very difficult knife to find in the USA. This knife is in near mint condition, a little staining on clip with original factory edge.