I acquired this when I picked up my Jobo, was in with the processing tubes. I looked at it for awile, then tossed it back in the box. A few weeks later, I listed some Ilfochrome tubes here, and while looking up instructions for their use, I finally figured out what it was. You have a couple of clues already. Can you figure it out? Make your best guesses, then I'll show the rest of the photos and explain.