Photographs showing the plaster model and bronze cast of 'Triarchy'. The photographs include details of the plaster model, and two views of the model for the large version standing behind the small maquette. Several of the photographs of the bronze cast show it outdoors in various locations.
Three photographs of the plaster model are labelled 'Large Seated Group', one of which has later been altered to 'Triarchy'. Twelve of the remaining photographs are labelled 'Triarchy'. The dates given vary, ranging from 1957 to 1960.