Brown “Blue Willow” vintage dish (no maker’s mark): 23,700 +/- 600 ppm Lead. 90 ppm (& up) is unsafe for kids.
Red “Blue Willow” Willow Ware by Royal China dish: 18,400 ppm Lead. 90 ppm (& up) is unsafe for kids.
Blue Willow Style Woods Burslem England Seaforth Bowl (Enoch 1784 & Ralph 1750): 44,200 ppm Lead (90 is unsafe)
