H.: 15 cm (the tallest)

Ref.:
- Sotheby's, New York, March 18, 2014, lot 10, for a 'zhi' vase dated Shang. (link)
- Christie's, New York, Sep. 20, 2013, lot 1479, for a 'zhi' vase dated Western Zhou. (link)

Condition: (UV-checked)
- Both in good condition with superficial wear and patination.
- The 'zhi' vase with multiple layers of patination, some worn.