This wheel-thrown dish has underglaze iron-brown painted decoration of a large fish around the centre and a band of decoration around the rim. The decoration was painted on a layer of white slip (liquid clay), which covered any impurities in the clay body and provided a whiter ground which would enhance the richness of the brown glaze. the whole piece was covered with a clear glaze.Large quantities of ceramics were made at the twin cities of Sukhothai and Si Satchanalai for export to Southeast Asia and beyond during the 14th to 16th centuries. The extent to which the Chinese ceramic tradition influenced stylistic and technological developments at Thai kilns, has been much discussed. However designs such as the fish motif are perhaps more likely to have derived from local sources.