These "pen" pistols were manufactured between 1993 and 1994. Designed by Bob Braverman as a last resort defensive weapon. This pistol resembles a "pen" when in the normal straight position. Pulling it apart and bending it into an "L" shape allows the trigger to pop out and it is ready for firing. The side is marked "ADC WACO, TX.". With an American Derringer Corp. hardcase.