I have seen this video. Unbelievable. However I could not find photos of this finished coins. I wonder what % of them were attributable vs. corroded or slugs.
Did you guys notice the dinosaur skeleton that walked across the back part of the table starting at 00:25? That was hilarious.
I grew up with timelapse in real life. We always had some dead animal in a state of decay, such as a possom, rabbit, squirrel, dog, etc. when we go out in the woods or fields to play. It was a daily ritual to see how much was eaten or decayed off the bones. Disturbed...? only when someone of us would pick up the carcass to throw it at someone. Growing up in the country is the only childhood you could have! I could never imagine growing up in a city.
The Catillon II hoard has a large web site including a blog with 77 posts by the guys who processed it. They discuss the coins and the cleaning. The photo above is from the https://www.jerseyheritage.org/treasure-island-blog/24-october-2014 post. It is "a tiny Osismii quarter stater of the Bull Standard type, very rare." https://www.jerseyheritage.org/whats-on/treasure---revealing-the-secrets-of-the-hoard