GERNING, Baron JOHANN ISAAC VON. A Picturesque Tour along the Rhine, from Mentz to Cologne. London: R. Ackermann 1820 [watermarks 1836-42]. 4to, 332 x 275mm. (13 1/16 x 10 7/8in.), original green cloth gilt, joints repaired but broken, slipcase, frontispiece offset on title, very faint offsetting to a few plates. Folding engraved map and 24 colored aquatint plates by D. Havell and T. Sutherland after C.G. Schutz. Abbey Travel 217.