Left to right: Chinese Han Dynasty (206 BCE to 220 CE) Cocoon Jar, Korean Silla Cover & Bowl (w. low-poly prosthetic base) 5-6th c. CE, Japanese Haji or pre-Nara (4-6th CE) Covered Round Box.

All of high-fired thinly potted grey stoneware, burnished and unglazed. The Silla cover has an incised rope or raised crosshatch pattern just above the rim: