Used teacup. There is writing on the back, but it is illegible. It looks like "Mifu" (美風). Amateur measurements: Diameter (bottom): 4.3cm Diameter (mouth): 5.9cm Height: 8.3cm Weight: 111g Material unknown. Set of 2. Teacups, tea set, 2 items, tea utensils. Stored in a blue box in the 2nd-floor warehouse. No price reduction. No need for prior comment, purchase welcome.