Who created this anatomically accurate model of a severed pirate head?

London's Science Museum has this plaster model, supposedly depicting the head of an executed Chinese Yangstze river pirate, in its collection. But what was the purpose behind creating the model, which depicts the blood vessels, trachea, esophagus, and severed spine? The pictures below are rather gruesomely detailed. » 4/27/13 9:30am 4/27/13 9:30am