OSSOLI, Countess.—See Fuller, Margaret.

OTTLEY, Henry.—A Biographical and Critical Dictionary of recent and living Painters and Engravers, forming a Supplement to Bryan's Dictionary of Painters and engravers as edited by George Stanley. By Henry Ottley. London. Henry G. Bohn, . . . 1866. Royal 8vo, cloth, uncut edges.

OTTLEY, William Young.—An Inquiry into the Origin and Early History of Engraving, upon Copper and in Wood, with an account of the engravers and their works, from the Invention of Chalcography by Maso Finiguerra in the time of Marc' Antonio Raimondi. By William Young Ottley . . . London: printed for John and Arthur Arch . . . by J. M'Creery . . . 1816. 4to, two volumes, half red morocco, gilt back, gilt top, uncut edges, by Bedford.

Numerous facsimile illustrations.

OTTLEY, William Young.—An Inquiry into the Origin and Early History of Engraving. 1816. Folio, two volumes, blue morocco, gilt back and sides, gilt edges, by W. Strong.

Large paper copy, sixty printed, with the illustrations on India paper, and many in duplicate, coloured.

OTTLEY, William Young.—A Collection of [100] Fac-Similes of Scarce and Curious Prints, by the Early Masters of the Italian, German, and Flemish Schools; illustrative of The History of Engraving, from the Invention of the Art, by Maso Finiguerra, in the middle of the fifteenth century, to the end of the century following: with an explanatory Catalogue of the Plates. By William Young Ottley, . . . London: published for the proprietor; and sold by Longman, &c. . . . printed by J. M'Creery, . . . 1828. Folio, half vellum, uncut edges.

One of the copies containing one hundred plates instead of one hundred and twenty-nine. Some of the plates are on India paper, and Niello No. 4 is in duplicate, in silver. There is no frontispiece.

OTTLEY, William Young.—A Collection of One hundred and twenty-nine Fac-Similes of Scarce and Curious Prints, by the Early Masters of the Italian, German, and Flemish Schools; illustrative of the History of Engraving, from the Invention of the Art, by Maso Finiguerra, in the middle of the fifteenth century: with Introductory Remarks and a Catalogue of the Plates. By William Young Ottley . . . London . . . printed by J. M'Creery, . . . 1828. Folio, blue morocco, gilt back and sides, gilt edges, by W. Strong.

The plates are on India paper, the Niellos in silver, and the frontispiece coloured.