Shortly after WWI ended, Bergmann came on the market with a line of .25-caliber pocket pistols; the 2 and 3 were conventional vest pocket designs with a short and long grip frame respectively; the 2a and 3a were identical except for an "Einhand" (one-hand) feature that enabled user to cycle slide by pulling front of triggerguard with his trigger finger. This enhanced feature will approximately double the values listed here. Soon into production (at about serial 8000) Bergmann affiliated with Lignose firm and later Model 2 and 3 pistols were marketed under Lignose name.