delmas shows two of the frontier special issues, the Crocket and Boone. There is one more, the rarest of the three, the 'mountain man'. Same pattern with the rough leather sheath and similar blade etch. As I collect the largest of traditional folders, although usually much older, I spent a lot of effort gathering up the three of them. As I understand it, Albert Baer stopped production of t he Camillus made Imperial Frontierss, as he felt they were eating into the Uncle Henry and Old Timer brands.