Mid 70's when I got started, took commercial art in Vo-ed school, teacher became mentor, and taught me how to hand letter, and let me work with him and payed me well.... he was a great man to me, then said student, (me) got a job right before graduation.
Started working for a startup sign company. Lettered everything by hand, sketched it on with a pencil lightly, then lettered it. We lettered a lot of those pan faces that Coke would give to business' back them with simple black block.
Helped install the signs...
Metal fabed with what ever tools we had or made or the boss could afford at that point.
Used a swing seat for a large sign company before they were banned.
Hung over the side of a ship that was dry docked for winter, and lettered it with a can of sterno keeping the paint soft! It was about 30° and a blizzard coming off of Lake Erie!
Cans were built with hammers and hand rivet guns, a small aluminum brake and what ever else...
The list is endless....
Can't imagine kidz today even being able to build anything without a computer and a CNC or Printer.