DAVID ROBERTS, R.A. (Scottish, 1796 – 1864). In the Slave Market at Cairo, circa 1849, Coloured lithograph by Louis Haghe (1806 – 1885), a Belgian lithographer and watercolourist. Stone titled and signed. Framed. Not examined out of frame. - 9.4 x 13.12 in; frame: 16.5 x 21 in Estimate $350-450