Brown “Blue Willow” vintage dish (no maker’s mark): 23,700 +/- 600 ppm Lead. 90 ppm (& up) is unsafe for kids.
When tested with an XRF Instrument the dish pictured here had the following readings: Food-surface of the dish 60-second test: Lead (Pb): 23,700 +/- 600 ppm Cadmium (Cd): 13 +/- 6 ppm Chromium (Cr): 7,667 +/- 508 ppm Bismuth (Bi): 95 +/- 46 ppm Zinc (Zn): 3,600 +/- 130 ppm Copper (Cu): 73 +/- 35…