that's because it was all the original sketchy looking fake ones were removed from the internet more than five years ago.

Most of it I saw was before the internet, so it'd only make it onto the internet if someone decided to archive it. There is a lot of pre-internet stuff that never has made it onto the internet. Some places worked on digitizing things, but so much was never touched.

I suspect some of what I saw on the subject was even on Real to Real camera projector type stuff.