It was my impression from the beginning that maui was confusing elements with compounds. Perhaps he wasn't aware of the difference. As if an elemental sketch, the best information a handheld XRF instrument can offer, was, in some way, equivalent to full blown chemical analysis. Unfortunately, they don't make a handheld mass spectrometer. But, that didn't stop maui, the former marine. He just used his marine rifle marksmanship skills and boot camp training to improvise, adapt, and overcome. As Hambone and Peter U suggested on WAF about eight years ago, chemical analysis could likely establish a "fingerprint" for legit lid paint and out post-war modern formulations.