I was recently having a discussion about the history of firearms and someone asked how long gun barrels were made before the advent of powered machine tools. I looked for some historic information and came upon an educational movie from 1969, "Gunsmith of Williamsburg." I'd never seen it.
For those who were in school before VCRs, you should get a nostalgic wave by once again seeing one of the kinds of movies that we used to see in schools. (Yes...young people...we actually ran actual films, with real projectors, on spring loaded retractable screens, in classrooms before VCRs, DVDs, and streaming content).