Mainz.Joseph Halenza. Undated. Engraved folded map of panorama from Mentz to Cologne. Original cloth backed paper-covered decorative boards. Small oblong folio; map measures 203 cms approx when unfolded. Extremities of boards rubbed and worn; small nick to heel of spine; paper browned; two folds of map are torn approx 3 cms at lower edge; rear pastedown a little grubby; a good copy.