1904 – Mechanical Walker Human Powered Unicycle – Crosse – (American)
Years ago when I was searching the patents database the long, hard way (Google patents has made it all sooo much easier and quicker), I came across this wonderful looking Mechanical Walker / Unicycle. I just love the concept and the fine illustrations. Steam punkers will enjoy this one as well. I don't believe it was ever built, not even a model. File date is 1904.