HUMPHREYS, Henry Noel & John Obadiah WESTWOOD. British Butterflies and their Transformations, London: William Smith, 1841, 4°, hand-coloured lithographed additional title and 42 plates (occasional light spotting), contemporary half morocco by Quinton of Norwich, spine gilt in compartments (covers unevenly faded, inner hinges split). [Nissen ZBI 2049]