@swchappell@grammyn I never had a typewriter that used these, but at some point an office I worked in was getting rid of these and, packrat that I am, I couldn't resist bringing them home. They just look so cool.
Interesing to see these. I like the vintage look and the shallow DoF. I don't know that I ever used anything like this. I sort of went from a manual typewriter to a word processor.