Came across a post at Gothridge Manor, an OSR blog by Tim Shorts, with some wonderful old-school hand-drawn and coloured Campaign Hex maps on display. You should definitely go check it out!!
Although I do all my mapping by computer now-a-days, I spent hour upon hour in pre-tech days painstakingly crafting hex maps by hand e.g:
My examples are nowhere near as beautiful as Tim’s however … which is why I need to use technology these days 🙂