Typewriter Escapements, an Overview

Examining the workings of typewriter escapements and the things that interact with them. Featuring an Olivetti Lettera 22, a Smith-Corona Silent-Super, and a Smith-Corona Clipper.
Note:
Pardon the audio quality on this. Some of this was recorded at different times and I also learned that my camera does an "audio zoom" along with the video zoom which messes everything up. I worked for five hours to try to get it all sounding fairly similar before I finally gave up...