Minot-type automatic rotary microtome

The instrument is constructed of cast iron and nickel-plated brass. Many cast iron parts are finished in black. The square base sits on 4 feet. The handwheel has a wood handle and raises the specimen block. A ratchet wheel adjusts the specimen distance from the knife. Each revolution of the wheel causes the ratchet wheel to move the specimen forward by a set distance. Two screws clamp the knife (not present) in place.