. . . . . . . . "A catalogue of the Portland Museum, lately the property of the Dutchess Dowager of Portland, deceased : which will be sold by auction, by Mr. Skinner and Co. on Monday the 24th of April, 1786, and the thirty-seven following days ... at her late dwelling-house, in Privy-garden, Whitehall ; by order of the acting executrix" . . . . . . . "Early works"@en . "Catalogs and collections"@en . "Catalogs and collections" . . . . . . . "Catalogs"@en . . "Catalogs" . . . . . . . . . "A catalogue of the Portland Museum, lately the property of the Dutchess Dowager of Portland, deceased : which will be sold by auction by Mr. Skinner and Co. on Monday the 24th of April, 1786, and the thirty-seven following days ... at her late dwelling-house, in Privy-garden, Whitehall : by order of the acting executrix"@en . . . . . "Sciences naturelles Collectionneurs et collections 18e siècle Catalogues de vente Ouvrages avant 1800." . . "Objets d'art Catalogues de vente Ouvrages avant 1800." . . "Coquillages Catalogues de vente Ouvrages avant 1800." . .