10 pages, folio (315 x 210 mm; 12½ x 8½ in.), edges untrimmed, neatly stitched at left margin, buckram folding chemise, burgundy quarter morocco gilt slipcase. Provenance: Mrs. Charles W. Engelhard (her sale Christie's New York, 26 January 1996, lot 183)." /> SIBLEY, John (1757-1837). Autograph letter signed ("John Sibley") to Sir William Dunbar, Natchitoches, Louisiana, 2 April 1805. <I>10 pages, folio (315 x 210 mm; 12½ x 8½ in.), edges untrimmed, neatly stitched at left margin, buckram folding chemise, burgundy quarter morocco gilt slipcase.</I> <I>Provenance</I>: Mrs. Charles W. Engelhard (her sale Christie's New York, 26 January 1996, lot 183). | Christie's