640 ppm

1924 Hardcover Book, “For The Children’s Hour”: 640 +/- 24 ppm Lead, Published by the Milton Bradley Company.

1924 Hardcover Book, “For The Children’s Hour”: 640 +/- 24 ppm Lead, Published by the Milton Bradley Company.

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“For The Children’s Hour”, Copyright 1906 (print date 1924) By Bradley Quality Books, Milton Bradley Company. Springfield, Massachusetts. The amount of Lead that is considered toxic in a newly manufactured item intended for use by children is anything 100 ppm Lead or higher in the substrate of the item or anything 90 ppm Lead or…