Hat tip to James.
An estimated one million people lined the banks to watch the liner depart – an occasion captured for Aerofilms, a pioneering air survey company that was set up by two First World War veterans in 1919.
The company built up a collection of more than 1,250,000 negatives and more than 2,000 photograph albums showing Britain from the air. Many landmarks are instantly recognisable but the public is being asked to help identify less well known views.
The Aerofilms Collection was acquired for the nation in 2007 when the company faced financial difficulties. Many of the photos, which range from 1919 to 1953, were so old and fragile that they were close to being lost forever.
With the help of English Heritage and the Royal Commissions on the Ancient and Historical Monuments of Scotland and Wales, thousands of photos were put through a painstaking process of conservation and cataloguing before being digitised for the public to enjoy.
They are now available on the Britain from Above website.
York Castle and Prison.