Royal M Cameo Blue Maruto Japan vintage dinner plate: Lead-Free! (surprise!)
2020 | Cameo Blue | Made In Japan | Maruto Japan | Royal M
XRF Readings for the dish pictured on this post: On the plain white of the food surface: Barium (Ba): 2,838 +/- 364 ppm Zinc (Fe): 27,100 +/- 800 ppm Iron (Fe): 221 +/- 67 ppm Bismuth (Bi): 64 +/- 29 ppm On the blue floral edge of the food surface: Note: black back-mark tested similarly…