When I spoke to my mum about a project I was doing about punctuation, I mentioned the issue of focusing on the en dash since it has only really been available to print since the computer. This prompted her to bring down her old typewriter, which was really fun to use. Once you get used to hitting the keys quite hard, you can type as fast as you would on a computer keyboard. However, I found I sometimes missed the keys and as I have small fingers, they got stuck between the keys!! I have an illustration I made of it somewhere. I will upload it when I have photographed my recent work.