Royal College of Physicians, Warwick Lane, London: the entrance, with a flock of birds flying south, one bird flying north with the word "cuckoo" on a paper in its beak. Engraving, 1709.

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Royal College of Physicians, Warwick Lane, London: the entrance, with a flock of birds flying south, one bird flying north with the word "cuckoo" on a paper in its beak. Engraving, 1709. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.