Lot Essay
During the Qin dynasty (221-206 BC) reforms were introduced to standardize currency, weights and measures. This included bronze rulers, such as the straight example illustrated in Treasures from the Han, The Empress Place Museum, Singapore, 1990, p. 31 (top), which is inlaid in gold on one side with clouds. The catalogue entry notes that it is inlaid with markings on one side to indicate the length of ten cun, but only has odd-numbered fen measurements on the reverse. The cun and fen are two of the units of measurement used during the Han dynasty, which also included the chi, zhang, and yin, all of which are still used in China today, although the lengths are no longer the same as during Han times. A bronze ruler of the same right-angled shape as the present ruler, excavated in Zichang county, and dated 206 to 220 BC, is in the collection of the Shaanxi History Museum, Xi'an.