Hello everyone! New guy here. My wife has discovered the hobby of finding gold at garage sales, flee markets, etc., and she has ended up with some gold filled items. We are both engineers and are approaching retirement, so this is going to be a joint effort hobby. I’m building a fume hood, have ordered and recieved about 1/2 of the equipment to include 10L of nitric acid (NGL-bit scary). I plan to run my first attempt on gold filled in about 6 months (Apr 2025). I am studying CM Hokes book and this forum. Thanks everyone!