HUMPHREYS, Henry Noel & John Obadiah WESTWOOD. British Butterflies and their Transformations, London: William Smith, 1848, 4° (273 x 215mm.), additional hand-coloured engraved title and 42 hand-coloured engraved plates (occasional light spotting), contemporary green half morocco (upper inner hinges broken, extremities rubbed), g.e. [Nissen ZBI 2049]