Jade seal with "tortoise", Western Han dynasty

A square-shaped jade seal with a figure of a turtle carved on top. The shell is engraved with geometric details. On the base is an engraved seal "归赵侯印" (Guī zhàohóuyìn). In good condition, with reddish patina "沁色" (qìn sè) produced by antiquity.

Size: 2.3 x 2.5 x 2.5 cm; Weight: 20 g