Charlynn Steering

[RG8800]

Heres an old ad from 1958 showing the Charlynn power steering unit available for tractors. Looks very simple and not that expensive either.
http://inlinethumb55.webshots.com/42742/2570609160032927439S500x500Q85.jpg (http://home-and-garden.webshots.com/photo/2570609160032927439jWWjlp)