Knife Pistol

Any knife with a pistol built into it or a pistol with a knife blade attached or folding out of it. In the first case it is considered a “disguised weapon” and a Federal Tax Stamp is required to legally own it. (Pictured, Sheffield made Unwin & Rodgers knife pistol, percussion model, mid-19th century; from the cover story of the December 2016 edition of KNIFE Magazine)