This laminated reference was designed and copyrighted by my friends Sheldon and Edna Wickersham. I have copies of all 3 editions. Please advise which edition you wish, or I have package prices for all 3 editions. They have ALL kinds of information on Randall knives, including dating sheaths, rivets, stones, sheaths, handles, spacers, etc. A MUST for all collectors... I only have a few left. These have become collectors editions!!!