Recently I had ordered myself a nice prismacolor 2mm drafting lead holder and some non-photo blue and red leads from amazon, this cost me around $25 or and was the cheapest I could find high quality leads and holders for, the holders alone going for around $7-$8 a pop.
After ordering them I remembered that my Grandpa Bill had purchased a bunch of drafting tools at a yard sale when I was in high school that I ended up tucking away without really using when I went to college (Along with a really nice drafting desk that I’m saving for a bigger studio space). On a lark I went up to the top of my parents garage and hit pay dirt.
8 Staedler lead holders or different sizes, 6 organized cases of Castellan black lead, 2 cases of Staedler black lead,4 types of manual compasses, 4 fountain pens, 2 nib pens, a Staedler swiveling lead sharpener, a steel lead lead sharpener (so old that it actually lists its place of manufacturing in West Germany) and countless have high quality pen nibs.
Overall this stuff would easily cost over $100 if it were being purchased brand new. Some of it may actually be worth more as it is vintage.
This is only the tip of the art supplies I have in my barn, it’s time to go through it I would say.