I learned to type at about 7 or 8 on what I believe was a surplus IBM model B electric typewriter, from before the selectric ball was invented. It didn't have a "one" key, you had to use a lowercase "ell". It was battleship gray, and it had a metal shell about as heavyweight as the bodywork on a 50s car, not to mention it had a steel chassis, innards that looked like a sewing machine if you unlatched the hinged cover, belt drive that ran constantly and idled with a noise reminiscent of the V8s of the era, and hurt about as much if you dropped it on your foot. The keys were very light, unlike what I've heard about the portable typewriters journalists used to carry. Barely touch them and it would go "snap, snap, snap" and then the carriage return would delicately release a spring with a click and send the massive carriage with the sheet of paper back "hrmmmmmmmmm..kaCHUNK" and you'd better not get a finger pinched in there. And if you pressed the "shift" key, several pounds of metal would actually be shifted instantly with a loud clunk you could feel to align the capital letters on the hammers.

I'm pretty sure it was the non-executive model at this link: https://www.ibm.com/ibm/history/exhibits/modelb/modelb_intro...

Anyway, I remember using both whiteout and the tape that you typed over to erase letters.