"Johannes Gerardus Keulemans (1842-1912)"
‘’European greenfinch’’ watercolor signed lower right JGK for John Gerrard KeulemansJohannes Gerard Keulemans was one of the foremost ornithological illustrators of the nineteenth-century. Dutch by origin, he was part of a select band of continental European bird and animal artists attracted to England during the middle and latter half of the nineteenth century.
This is a superb watercolor by one of the finest artists of ornithology
https://en.wikipedia.org/wiki/John_Gerrard_Keulemans
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