Scope and Contents Recto: photograph of Dr Blyth inspecting a Brown Leghorn hen at the Poultry Research Centre, with a caption reading: 'Dr Blyth inspects a Brown Leghorn hen in the spacious breeding hens house where the most detailed checks of the laying of the birds are registered regularly throughout the day in charts'; photograph of Dr Lake and Dr B. Dugdale with a cockerel. Verso: photograph of Alan Greenwood appearing on a television screen; photograph of two unidentified women sitting...