A black glaze jarlet from Cizhou area or some Henan kilns that being produced for SEA market during Sung dynasty. The rather thick viscous, black glaze covers the external wall, stopping short near to the concave base, revealing original firing red at the unglaze base. The buff colour glaze at mouth edge and upper foot rim shown another authentic sign of this Song artifact. Except for a firing defect at one side of the body (see photo for clear detail) and a chip at mouth rim, the overall condition is very good. No restoration and hairline. Excavation artifact.