Negatives of smock, tower and post mills and watermills in Kent, Surrey, Cambridgeshire and Huntingdonshire.

Photographs taken from negatives created by Peter Pearce and B. R. Billings. They appear to have been in the possession of SPAB at the time of Stephen developing them. Peter Pearce's photographs of predominantly Sussex, with some in Essex, Oxfordshire, Buckinghamshire and Surrey, taken between 1925 and 1936. B. R. Billings' photographs were taken between 1913 and 1920.