The Ba–Shu scripts are three undeciphered scripts found on bronzeware from the states of Ba and Shu in the Sichuan basin of southwestern China in the 5th and 4th centuries BC. Numerous signature seals have been found in Ba–Shu graves, suggesting that the states used written records, though none have been found. The known inscriptions are too few to be deciphered, or even to identify the language recorded. The third script is known from a single sample, an inscription on the lid of a bronze vessel found in a grave in Baihuatan, Chengdu dating from c. 476 BC. It may also be phonetic.