Vintage Corelle Butterfly Gold glass plate: 18,700 ppm Lead on decorative pattern when tested with an XRF instrument
Vintage Corelle By Corning Butterfly Gold Pattern Glass Bowls: 23,300 ppm Lead [90 ppm is unsafe for kids.]
Vintage (c. 1972) “Butterfly Gold” Pyrex Casserole Dish: 87,000 ppm Lead. [Context: 90 ppm Lead is unsafe for kids.]
![Vintage Corelle By Corning Butterfly Gold Pattern Glass Bowls: 23,300 ppm Lead [90 ppm is unsafe for kids.]](https://tamararubin.com/wp-content/uploads/2018/04/Vintage-Corelle-Corning-Butterfly-Pattern-Bowl-Tamara-Rubin-Lead-Safe-Mama_3-768x576.jpg)
![Vintage (c. 1972) “Butterfly Gold” Pyrex Casserole Dish: 87,000 ppm Lead. [Context: 90 ppm Lead is unsafe for kids.]](https://tamararubin.com/wp-content/uploads/2018/04/Butterfly-Gold-Vintage-Pyrex-Casserole-Dish-Tamara-Rubin-Lead-Safe-Mama-1-768x576.jpg)