From the August 1968 issue of Computers and Automation magazine, the results of their Sixth Annual Computer Art Contest (flip to page 8).
It’s also worth paging through the rest of the magazine just for the ads.
Update: Looks like The Verge saw this post and did a followup on the history of the Computer Art Contest.
In any given issue, Computers and Automation devoted equal time to the latest methods of database storage and grand questions about the future of their “great instrument,” but the Computer Art Contest was soon a regular event. A look back through old issues of the journal (available at Internet Archive) shows how the fledgling discipline of computer art rapidly evolved. At the time, computers were specialized tools, most commonly used by individuals working in research labs, academia, or the military — and this heritage shows. Both the first and second prizes for the inaugural 1963 competition went to designs generated at the same military lab.