The Case bug bit me decades ago but my addition have always been financially devastating. Early Case knives are what keeps me awake at night. I have a few Case's built after 1964 but I pine for earlier production folders. I found a beautiful Case and Son, Bradford, PA at a yard sale last year. It is too early to have a pattern number and was produced before 1920. Beautiful green bone handles with a master blade that is a clip with double cut swedges and a long pull. This is a tiny 3 blade stockman and cost me whopping $2. I normally carry a 2 blade Case Tester XX built from 1920 to 1940. This again is handled in green bone. Early green bone makes me weak in the knees. For decades I carried a brown bone 2 blade Case XX built in the 1950's. That knife has been on many adventures and has skinned and gutted several truckloads of deer and elk. I do not know whether to congratulate you on your addiction or mourn for you.