Franciscan Autumn Pattern plate & saucer: as high as 716,100 ppm lead in the glaze.
Autumn Pattern: 1955 – 1966
Also: 73,000 ppm arsenic.
Note: the plate was higher lead than the bowl, and they look like they are from different batches based on the maker’s marks on the bottom. The bowl / saucer was in the neighborhood of 350,000 ppm lead.
To learn more about XRF testing, Click Here.
For Context: Items intended for children are required by current legislation to be under 90 ppm lead in the paint or coating. Dishes (especially vintage dishes!) are not regulated for total lead content (via XRF reading.)
As always, please let me know if you have any questions.
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