I would love to get high res copies of the Demonstrator photos, particularly with the fairing stripped off, as they show a wealth of technical detail and bracketry. Along the bottom are the grease nipples that allowed remote greasing of hinged components throughout the airframe, a ‘selling point’ that for ‘ease of maintenance’ that nudged out Camm and Hawkers in favour of Bristol for the 1929 RAF fighter contract. The fabric work on the Demonstrator looks superb.