You owned a lead ruler 20 years ago? I get the idea but I had never heard of such a thing. I know about physical splines, but I thought those were flexible wood, or maybe plastic later on.
I didn't use it much for drawing, though, because I liked the French Curves (or Burmester Schablonen, as they are called in German) much better. The lead ruler, on the other hand, was fun to play with during boring lessons, I like to think of it as my generations fidget toy.
[1] https://www.xn--praehistorika-archologenbedarf-dtc.de/produk...
Is there still lead in it? Any health issues? Is that why I can't find them in North America?
EDIT: I do find hits for Flexible Curve Ruler on Amazon but several reviews complain they don't hold their shape well. Are they made of a substitute that doesn't perform as well as lead?
I had no idea these were a thing!