EUC Urban Industrial Art by Rick Pruckler. Handmade by the Whistling Frog Tile Company in Michigan. Dated 2021 Color: Aqua Materials: made in Michigan porcelain and Rick's specially formulated glaze. Using Rick's time tested recipes, the glaze is made in small batches creating one of a kind pieces. This tile measures 5.75” diameter, nominal size of 6”diameter, with raised relief of .75” or less. There is a notch on back for hanging, yet if you wish to install, it's also suitable for that too. If used outdoors in freezing temperatures, just make sure to keep it vertical. Peace tile can be used as a coaster for your teacup. The inner-circle that your cup would nestle into is 2.75" across. Looks like your cup of tea has sprung up from a lotus flower. There are some brown specks that did not wipe off with damp cloth. See pictures.