Research papers of Julius Samuel Held, American art historian renowned for his scholarship in 16th- and 17th-century Dutch and Flemish art, expert on Peter Paul Rubens, Anthony van Dyck, and Rembrandt. The ca. 70 linear feet of material, dating from the mid-1920s to 1999, includes correspondence, research material for Held's writings and his teaching and lecturing activities, with extensive travel notes. Well documented is Held's advisory role in building the collection of the Museo de Arte de Ponce in Puerto Rico. A significant portion of the ca. 29 linear feet of study photographs documents Flemish and Dutch artists from the 15th to the 17th century.