Back in the olden days, before I bought the Cinderella for our house, I posted quite a lot about various types of toilets. Strangely, those posts were among my most popular.
I have found a website that far surpasses me in this field, however. A young man has filmed literally hundreds of toilets of all ages and styles, going about their business, so to speak.
He has a You Tube channel of his work. It's strangely compelling.