Kau Jun, the 'venerable gentleman', wearing traditional costume, holding the 'Eight Trigrams' and 'Yin and Yang' symbol. Watercolour, China, 18--.

Licence: Public Domain Mark

Credit: Kau Jun, the 'venerable gentleman', wearing traditional costume, holding the 'Eight Trigrams' and 'Yin and Yang' symbol. Watercolour, China, 18--. Wellcome Collection. Source: Wellcome Collection.