I AM the inventor of the OMNI Digital Pannel Meter. I was the only authority in the calibration for Vacuum gauges in the entire U.S. for a while. AND people like T.R.W. Rockwell, Hughes and G.E. used to send their instruments to me. I hope to become the New World Karat Standard. Perhaps with your help.
Lets open a dialog.
The goldanalysers we make work with X-rays. With silver it will be about 50 micron. This will examine the whole piece, I hope. Perhaps you can be present at the unveiling. But at first allow me some questions to understand your instrument.