The beautiful Chicago (1897-1917) is a typewriter of many names. It was originally (1890) called the Munson, and exposed its mechanism rather than encasing it in a cast iron body. Its later name variants include Baltimore, Conover, Draper, Galesburg, Ohio, Yale, and Mizpah (a Hebrew-alphabet version -- no specimens of the Mizpah are known to exist).
The type of the Chicago is located on a type cylinder whose axis runs horizontally. The depression of a key rotates and shifts the cylinder into the right position, and a hammer hits the paper against the type. The broad, 1-inch ribbon is another easily recognizable feature of this machine. The Chicago is not a visible writer; the operator must tilt the carriage back to see what she just wrote.