I went to an estate sale this weekend and found some old issues of Guns magazine. I thought you might enjoy this article from March 1967 written by some guy named Ralph Shattuck....
I didn't want to choke the forum so if anyone is interested higher-res scans of the article they will be available here:
http://www.ozarkmountainfolkfair.com/images/articles/ for a while, but not forever.