Thank you, I think the Selectric is a pretty interesting device. Your story makes it sound like the role earlier filled by the Friden Flexowriter. I imagine it was pretty easy for the Selectric to out do the Flexowriter for most things and the output could be easily duplicated at a certain point.
Any insight on friden flexowriter?
https://en.wikipedia.org/wiki/Friden_Flexowriter