cma-korean-art:

Lidded Cup with Strap Handles, 300s-400s, Cleveland Museum of Art: Korean Art

Size: Overall: 21.1 cm (8 5/16 in.); Outer diameter: 15.7 cm (6 3/16 in.)
Medium: stoneware with natural ash glaze

https://clevelandart.org/art/1997.9