The amount of lead considered unsafe in items intended for children is 90 ppm lead or higher. (so this would be considered lead-safe.) Dishes are not sold as “intended for children” so total lead content (as detectible with an XRF) is not regulated (now or historically.) Vintage and antique dishware is also not regulated for total lead content nor lead toxicity. I am not saying that these dishes (or any specific dishes that test positive for lead or cadmium) will poison you, I am only saying they may contain an unsafe level of lead (or in this case cadmium) by today’s regulatory standards for items intended to be used by children. Lead is one of the most potent neurotoxins known to man and does not belong in our kitchens nor on our dining room table.
Red & White Ceramic Plate: 83 ppm lead (on white) • 331 ppm Cadmium (on red)