The status of photographs in the history of museum collections is a complex one. From its very beginnings the double capacity of photography - as a tool for making a visual record on the one hand and an aesthetic form in its own right on the other - has created tensions about its place in the hierarchy of museum objects. While major collections of 'art' photography have grown in status and visibility, photographs not designated 'art' are often invisible in museums. Yet almost every museum has photographs as part of its ecosystem, gathered as information, corroboration or documentation,...