The beautiful Keystone 1 typewriter uses a rotating type wheel, shaped like a section of a wagon wheel. The characters are molded onto the outer surface of this wheel, which rotates into position when a key is pressed. A spring-driven hammer then strikes from behind, pushing the paper and ribbon against the type wheel. As a result, the paper is preloaded into a cylindrical holder behind the platen and unrolls upward and outward during typing.
The type wheel could be easily changed on the Keystone, allowing for different font styles.
There are two shift keys on the left, giving each key three functions. This design allows for three rows of keys instead of four.
