Ivor Johnson Defender Second model

Iver Johnson was an American firearms, bicycle, and motorcycle manufacturer from 1871 to 1993. The company shared the same name as its founder, Norwegian-born Iver Johnson (1841–1895).

The company's name changed again to Iver Johnson's Arms & Cycle Works in 1891, when the company relocated to Fitchburg, Massachusetts, (sometimes incorrectly referred to as "Fitzburg") in order to have better and larger manufacturing facilities. The company attracted a number of talented immigrant machinists and designers to its ranks, including O.F. Mossbergand Andrew Fyrberg, who would go on to invent the company's top-latching strap mechanism and the Hammer-the-Hammer transfer bar safety system used on the company's popular line of top-break safety revolvers.