This is probably bit different from what's normally asked on here. Closing down a small media company that specialised in online, live streaming videos. We've found a cabinet full of colour slides / negs that one of the ex-employees left behind when he quit (before being fired for being useless) a couple of years ago.
What can we do with them? He's obviously abandoned them but some shots would be of interest? I refuse to track him down and inform him - the guy was a conman, thief and helped bring the company to it's knees similar to several companies he'd been involved with previously.