7004-352 Shuttle plane. These specialized planes were designed to ride in tracks so that the sides of a textile mill shuttle could be planed exactly square to each other. This one consists of the plane and the track, unmarked. Metal is good; tote and knob have some chips and cracks. Cutter is narrower than the throat and probably a replacement. These are super rare. Good- 40 - 80 (JMC403)