There was a company back in the day called Microcolor or something like that. They marketed a tremendous amount of GA material on fiche, and also sold a microfiche reader for viewing. I can't recall how much the stuff sold for, but I received a bunch of the fiche and a reader from the company as a "demo" type thing through my job. It was a little clunky by today's standards, but there were not the options back then that we have now. I probably still have a buch of these little devils laying around in a box somewhere.