This is a very old interesting Chinese Export stoneware Longquan Celadon bowl, which we date to the early Ming or later Yuan Dynasty, circa 1400 or earlier. The bowl is well potted with a fairly thick rim and on a high foot.
 
The glaze thickness varies with some small runs and pits.   The bowl is an olive green colour having a celadon glaze. Unglazed parts fire to a light terracotta brown colour, particularly at the underside foot. The piece is unmarked but for similar pieces see the superb book: Chinese Ceramics by He Li published by Thames & Hudson, 1996; pages 164 to 184
 
. NOTES Longquan is a city in South west China. These wares were produced over a long time period from 959 to 1550; which covers the Northern Song, Southern Song, Yuan and the early Ming periods from 1368 for approximately 200 years. Production was on a large scale with the wares forming an important export market for about 600 years. Colours centred on olive green but greenish blues and browns were also made. There eventual demise came when they were replaced by Blue and white porcelain from Jingdezhen.
 
Dimensions: 
Height: 2.7 in (6.86 cm)Diameter: 5.9 in (14.99 cm)
Condition: 
 Very Good antique condition for about about 600 years old. NO restoration. NO Damage. Some potting, firing & glaze faults / marks from the time of making, which is normal with this period. Please see images.