20 South London sites photographed annually, in order, at the same time of day. Project commenced in 1973, and photos cover all years through to the present.

Every year on or around the same day (24th May - 2nd June) at the same time of day and from the same position a photograph is taken at each of the twenty locations on this map (see above) which is based on a circle of half a mile radius drawn around the place (Site 1: 102 Grove Park SE15) where the project was devised. It is hoped that this process will be carried on into the future and beyond the deviser's death for as long as the possibility of continuing and the will to undertake the task persist.

See an earlier treatment of this subject in the Paintings section and a related print in the Editions section.