Korean Celadon Glaze Inlaid White Fish Design ---and I have one very similar.
[Middle Ages-Goryeo] Cheongja Sanggam Unhangmun Maebyeong (Celadon vase with inlaid crane and cloud design)
Celadon Oil Bottle | Goryeo, 13th Century | Clay Height. 6.9 cm | Leeum Samsung Museum of Art
Bottle with decoration of peonies and dots. Korean, Joseon dynasty (1392-1910); first half of the 15th century. Buncheong with inlaid and stamped design. Leeum, Samsung Museum of Art, Seoul.
Pleasure from Emptiness : 57억원에 팔린 조선 청화백자
[옛것을 만지다](1) 조선시대 청화백자 화장(化粧) 그릇 Cosmetics containers in Joseon Dynasty
A Korean Blue and White Bottle Vase, 19th century, the elongated, narrow neck tapering slightly, the globular body decorated with a writing dragon amidst fluffy scrolled clouds, raised on a recessed circular foot. Height 18 7/8 inches.