1960s Sango brand (made in Japan) child’s teacup: 2,323 ppm Lead [90 is unsafe for kids] + 292 ppm Arsenic.
When tested with an XRF instrument this Sango teacup (made in Japan) had the following readings: 1) Test focused on silver banding on handle: Lead (Pb): Negative / Non-Detect Mercury (Hg): Negative / Non-Detect Cadmium (Cd): Negative / Non-Detect Arsenic (As): Negative / Non-Detect Antimony (Sb): Negative / Non-Detect Gold (Au): 755 +/- 64 ppm…