Sheet 79nw, Old Series 1". c1850. First edition. Denbighshire coast: Abergele, Rhyddlan. Hand-coloured engraving

Sheet  79nw, Old Series 1". c1850. First edition. Denbighshire coast: Abergele, Rhyddlan. Hand-coloured engraving, 37.5 x 52cm. Topography 1840, geology dates not recorded (Subsequent edition notes 1850). Pre-railway. Flat, clean, age-toned. Trimmed without loss of marginalia. Manuscript letter/number code on legend colours. Pencil annotations in margin. Old tears across map neatly repaired with archival tape. 80% sea area. In fair to good condition.