Isn't Clyde Butcher the Florida photographer that nearly lost his shirt because he used RC paper instead of fiber paper? He sold the state of Florida a bunch of print that were super big like 8x10 feet then the paper started to self destruct and he had to replace them at his costs.
I wonder if those like Clyde even no if there really is an older process called Carbon Printing. I would have never known about it if not for Sandy and those that do that process. A lot of people know color and silver and platinum but some of the more obscure processes might have slipped by a few folks.