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Buddha of Medicine Bhaishajyaguru (Yaoshi fo), c. 1319, Yuan dynasty, water-based pigments on clay mixed with straw, 24 feet, 8 inches x 49 feet 7 inches / 751.8 cm x 1511.3 cm (Metropolitan Museum of Art, New York).

View this work up close on the Google Art Project: http://www.googleartproject.com/collection/art-gallery-of-new-south-wale...