Ancient Chinese Warring States 475-221 BC Bronze Belt Hook

An extremely rare ancient Chinese Warring States period (475-221 BC) bronze belt hook, in the form of a coiled archaic large dragon swallowing a smaller dragon, the reverse with a projecting button for attachment. 

Measurements: Overall length: 12 cm (4.72 inches) 

CONDITION: Green patina with heavy corrosion and encrustation, so we may accept this belt hook as ancient and authentic. 
Please notice that the pictures in the listing are part of the description of the condition of the object.