Skinner and Co. (1786). A catalogue of the Portland Museum, lately the property of the Duchess Dowager of Portland, deceased: Which will be sold by auction, by Mr. Skinner and Co. on Monday the 24th of April, 1786, ... at her late dwelling-house, in Privy-Garden, Whitehall; ..

Skinner and Co. A Catalogue of the Portland Museum, Lately the Property of the Duchess Dowager of Portland, Deceased: Which Will Be Sold by Auction, by Mr. Skinner and Co. on Monday the 24th of April, 1786, ... at Her Late Dwelling-house, in Privy-Garden, Whitehall; .. 1786.