The inscription cast on the interior of the base reads Kui Ran, a personal name.
The present gu is associated with the 'mature' style of gu from Anyang (late 13th to early 12th century BC) which all exhibit the same distinctive structure and the same decorative sequence of motifs. A similar example is illustrated by R. W. Bagley, Shang Ritual Bronzes in the Arthur M. Sackler Collections, The Arthur M. Sackler Foundation, Washington D.C., 1987, pp. 239-41, no. 33.