Ask HN: What are your favorite examples in history of good user interfaces?

Looking at the title of the recent Hacker News submission "Properly Displaying Ancient Interfaces"[0], I had thought it was going to talk about actually ancient (historically) user interfaces.

Which got me wondering, what are some examples of ancient (historically) user interfaces that are very good?

They don't have to be actually ancient, but I'm curious to hear about examples out there of thoughtful user design in inventions prior to computers. Are there other times in history where UX design was obsessed over like it is now?

[0] https://news.ycombinator.com/item?id=35183458