This entry is a redirect page. The mark shown here, together with a few others, belonged to the import and distribution company Toyo Trading Co. (PM&M ID #0208-018) in Fullerton (California, USA). Please check out the linked page for more information.
Many items originally include a warning, either in the form of underglaze text or a sticker, which reads "Not for food use. Article may poison food. For decorative purposes only". Of course, unscrupulous resellers often removed the stickers, endangering unsuspecting customers.

M210931a
"HEIRLOOM BY TOYO" above "MADE IN CHINA" plus warning addition.

M210931b
"HEIRLOOM BY TOYO" above "MADE IN CHINA".