3 7/8 x 5 7/16 in. mounted albumen photograph (all edges clipped, few spots and surface abrasions). Uncredited, though the pose is nearly identical to Plate 56 (cat #153) in Picturing Frederick Douglass, which is credited to Denis Bourdon, Notman Photographic Company, Boston. 10 May 1894. Douglass sat for a portrait at the Notman studio when he visited Boston on 10 May 1894 for the purpose of giving an address at the People's Church on Boylston Street. The Notman Photographic Company sent the products of the sitting on 29 May, with several copies. Denis Bourdon became the chief photographer and manager at that Notman's location in 1880, eventually becoming president of the company in 1918. (Picturing Frederick Douglass: An Illustrated Biography of the Nineteenth Century's Most Photographed American. New York: Liveright Publishing Corporation, 2015.)