That’s pretty modern set, well, at least the lead holder is.
Jr HS Mech. Drawing teacher’s first day equipment requirements included a sharp pocket knife.
“Before you can sharpen a drafting pencil (wood) you have to know how to sharpen and hone your knife properly.”
Pencils were used for layout only, final line work and lettering was all in ink on a medium buff vellum, similar to manila folder stock.
We had to supply our own single edge razor blades to scratch trim line over runs at intersections. Followed with glass marble burnishing to keep crisp lines.
Imagine a modern middle school teacher telling the students, “Bring your own knives and razors to class.”
Then again, he carried a snub nose revolver on his belt every day. Covered by his jacket of course.
Tough DC school and neighborhood back then. Life rules were also less ambiguous.
Wow, my father had a couple of those sets, I used to play with them when I was a kid. By the time I started drafting in 1982 right out of high school, we were only using mechanical pencils, templates, triangles, and the french curves.
I’ve seen electrical plans from the 1870’s, though, insanely beautiful drawings. Unbelievable what they could do with those tools.