My first typewriter was a portable Smith Corona, acquired second hand in 1968.

I had to thump the keys to make an impression, and insert Tippex paper to correct any mistakes. That was no easy task if I was also producing carbon copies. My most challenging project was to type up three copies of my husband’s MSc thesis on this primitive machine. By the end of it I knew all about glass ionomer cement and had a stinking headache and repetitive strain injury to boot.
I now find that such a machine is a period piece and has a certain monetary value! Maybe I should have kept it.
In the late 1980s I graduated to an electronic model. Still a typewriter with inked ribbon, but this time requiring a lighter touch and with the benefit of a single line display. A chance to review the last few words before they were printed. A real step forward.