fingernail test...
if you can scratch easy with fingernail, it's "lead"
if you can't it's "lino type"
good enough.
This is actually fairly accurate as long as one doesn't have whimpy nails. Sometimes you don't have a hardness test close by. This was taught to me a few decades ago by an old bullet caster. He claimed if you could easily gouge the lead with a thumbnail it was soft, south of BHN10. If you could mark the lead but not really gouge it, 11-16/17 depending on how much of a mark it left and if your thumbnail won't mark it and it feels glassy, it's hard, 18 or higher. I just checked some water dropped bullets with a BHN of 29. Like trying to mark glass with my thumbnail. It has worked well for me to get a ball park hardness until I could check it with my LBT tester.
