“In 1866 William T. Walters commissioned a deluxe album from French art dealer Georges Petit (1856–1920) to house his growing collection of watercolors by the French watercolorist Léon Bonvin (1834-1866). …For his album, Walters commissioned a decorative frontispiece and tailpiece from the flower painter Jean-Marie Reignier; these were completed by early 1867. Reignier’s tailpiece in…