The pictograph cast in the bottom of the interior is a clan sign.
A jia of larger size (45 cm. high) with similar profile and bands of decoration around the sides dated 13th-12th century BC is illustrated by R.W. Bagley, Shang Ritual Bronzes in the Arthur M. Sackler Collections, Washington, DC and Cambridge, Massachusetts, 1987, pp. 164-5, no. 7. The author notes that "jia decorated in two registers appeared shortly before the Anyang period" (c. 1300-c. 1030 BC).
Another similar jia (35.2 cm. high) is illustrated in Shang Ritual Bronzes in the National Palace Museum Collection, Taipei, 1998, pp. 152-7, no. 9, where on p. 156, two excavated examples are illustrated. Both were excavated in 1968, in Henan province, Anyang prefecture, Xiao chuan, the first from Tomb M388, the second from Tomb 331.