The Case of the Agile ATVs

Here is a great article in Popular Science magazine from December 1961 that focuses on the Jiger 6x6 ATV from John Gower


Here are a few pages from a Popular Science magazine article from February 1970 titled "The Case of the Agile ATVs". It talks about ATVs in general but mentions Attex, Amphicat, Coot, and others.
Here is a link to a Popular Science article in the March 1971 issue that talks about the Sears Sportster, the Ruppster, and the Sperry Rand...