3964181 Plate from the Catalogue of the Portland Museum, 1786 (engraving) by English School, (19th century); Private Collection; (add.info.: Margaret Harley Cavendish Bentick Portland, Dowager Duchess of William, Second Duke of Portland (1715-85) -- John Lightfoot (1735-88). Catalgoue of the Portland Museum, lately the property of the Duchess Dowager of Portland, deceased; which will be sold by Auction. London: Skinner & Co., 24th April, 1786, bound with A Marked Catalgoue containing the Lots, what each respectively sold for, and the Names of the Purchasers...which constituted the Portland Museum. London: Printed for Kearsley, Walker, et al., 1786.); Photo byChristie\'s Images.