![Vintage Ceramic Hull Brand (Made In USA) Coffee Cup: 299,800 ppm [30%!] Lead (when tested with an XRF instrument.)](https://tamararubin.com/wp-content/uploads/2019/01/Made-in-USA-Hull-Potteries-Vintage-Coffee-Cup-Lead-Safe-Mama-1-768x576.jpg)
Vintage Ceramic Hull Brand (Made In USA) Coffee Cup: 299,800 ppm [30%!] Lead (when tested with an XRF instrument.)
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Ceramic “Hull” Made In USA “Oven Proof” Coffee Cup. When tested with an XRF instrument this cup had the following readings (each test done for a minimum of 60 seconds.) Exterior Brown of Cup Lead (Pb): 120,700 +/- 5,000 ppm Barium (Ba): 498 +/- 145 ppm Selenium (Se): 158 +/- 77 ppm Iron (Fe): 17,300…