Vintage Botanical Prints - 49 in a series -  The Blue Passion-flower, 1799-1807. Robert John Thornton

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The Blue Passion-flower, 1799-1807. Robert John Thornton (British, 1768-1837). Aquatint, stipple, line engraving, etching and roulette; The Cleveland Museum of Art, Gift of The Print Club of Cleveland, for the Donald Gray Memorial Collection 1939.293