The National Gallery in London has acquired the Agnew's Archive, which documents the history of the famous art dealership Agnew's and its role in forming many private and public art collections over 150 years. The archive will aid the Gallery's research priorities of collections-based research and exhibitions as well as the research theme of the history of buying, collecting, and displaying art. It will provide valuable provenance information and help scholars better understand the formation and dispersal of important art collections over time.