The dragon turtle, also known as "bixi" (bi xi), is an auspicious animal recorded in ancient Chinese books. It is said that it is one of the "nine sons of the dragon", with a dragon head. As a tortoise, it is a pure yang mythical beast that can ward off evil spirits, control evil spirits, resolve conflict, relieve misfortune, control the house, attract wealth, and gather wealth. It is a symbol of power and longevity.
The themes of bronze wares were mostly seen in the Ming and Qing dynasties. It cannot be ruled out that it will happen in the early stage.
But the probability was higher during the Ming and Qing Dynasties