A pair of H.G. Murphy Falcon Studio enamelled metal Penguin book ends

A pair of H.G. Murphy Falcon Studio enamelled metal Penguin book ends, mounted on triangular wood stamped marks to enamelled metal panel, 15.5cm. high (total height), (2) Provenance H.G. Murphy (1884-1939), and thence by descent to the present owner. Literature Paul Atterbury and John Benjamin The Jewellery and Silver of H.G. Murphy Antique Collector's Club, page 121 for this example illustrated