Vintage Arcoroc Glass Plate: 256 ppm Lead. For context: 90 ppm is unsafe in items intended for use by children.
Franciscan Earthenware Madeira Pattern Dishes: 67,300 ppm Lead. [90 ppm Lead is considered unsafe in children’s items.]
Vintage (c. 1955-1966) Franciscan Autumn Pattern China: 716,100 ppm Lead [71%!] + 73,000 ppm Arsenic Too!