John King has an amazing website with a section on lockpicking. He invented a tool to open several versions of medico locks and had a lot of other good information.
http://theamazingking.com/tools.phpAudiogeek sold high end audio equipment but had an excellent collection of photos on stuff of interest to lockpickers.
Matt Blaze has a large collection of photos of interest as well. His site is still up but who knows for how long. A little google fu should find it for you.
A long time a go there was a post here with links to some the sites that had been archived but no longer alive.
At the risk of being censured (and censored) for bringing up old posts you may wish to check out
https://www.keypicking.com/viewtopic.php?f=12&t=6693#p56490 Some of the posts had some copyrighted material and/or linked to postings on other well known lock picking sites that site admins had legitimate objections to.
Sometimes linking to wayback machine content creates unintended copyright violations. Admins can not afford the legal risks of allowing posting of links to some material from sites, especially sites that have been shut down.
The wayback machine is like a robot that copies everything that is found on a website. A well known website was captured before the sysadmin had a chance remove a bunch of extreme PORN. Well after the sysadmin had cleaned up their site you could still view the material as if the website was still hosting the porn by viewing it on thewayback machine. To the best of my knowlege the links did end up removed.