Shangxiagujin 上下古今 means “up and down/back and forth between ancient and modern.” Chinese language chop with four red characters counter-clockwise from top right. Image is not to scale.

• Inscription: 上下古今
• Pinyin: shang xia gu jin
• Collection: private collection
• Material: dark brown hardwood
• Size: 1.4 x 1.6 cm.
• Date: 2011
• Registry: cs188