Coffee cup : 44,000 ppm lead
Bone China – Golden Crown – E & R, England
Rose Queen Series, Ena Harkness.
For context: The amount of Lead that is considered unsafe and illegal in newly manufactured items intended for use by children is anything 90 ppm Lead (or higher) in the paint, glaze or coating.
Antiques and vintage items are not regulated and in most cases it is not required (for resale) to mark them as containing lead (and being potentially hazardous) as it is required with many newly manufactured items.
As always, thank you for reading and for sharing my posts.
Please let me know if you have any questions.