African Theme Sheet Music. Lot of Three. Eighteenth to mid-nineteenth century. Two with illustrated covers. Including “The Poor Black Boy,” 3 pp. engraved ca. 1790s; “Negro Melodies Quadrille,” 8 pp, with lithographed full color portrait of Billy Waters on cover, ca. 1850; and a fragment of the cover of “The Blind Negro Boy Pianist, only 10 years old”, ca. 1860s. Good.