(lot of 6) After Jacques Juillet (French, 18th century), Lepidopterological Studies, engraving with hand coloring, each titled lower center, artist name in print lower right, largest overall (with frame/each): 15.5"h x 17.25"w. Provenance: Property from the Estate of Frank J. Caufield, San Francisco (CA) and Montecito (CA) Mr. Caufield was one of the founding partners of the venture capital firm Kleiner, Perkins Caufield, and Byers