I can't remember for the life of me a certain pattern number for a case knife. The knife is a jack knife. Has a master clip and secondary pen. I think hte master clip would be considered a Lanny's clip in that it is wide. The blade looks to be flat ground. It is about 3.5 inches closed, with only the pivot end bolstered, atleast I think. I know that end of it is in the 1/2 ie. 6302 1/2. I believe it is something close to that but I don't know. Anyone able to help?