The John H. Barker Collection contains various photographs, advertisements, and documents detailing the artistic output of the industrial artists during the 1940s through the 1950s. Photographs include depictions of paintings of various Waterbury factories, including Anaconda Copper and American Brass Co., which were painted by John H. Baker. The collection also contains various advertisements for Anaconda and American brass that include artwork created by J.H. Barker. The collection also contains correspondence to J.H. Barker from Orton P. Camp and an announcement from Anaconda Vice President on the opening of the Ansonia Branch. The collection contains one folder of paintings of an undetermined factories from other artists, which were perhaps used as reference or research.