Photo shows lamp standing on a small table, Identification on verso (handwritten): Portable electric lamp, same base as the ash container, designed & constructed by C.H. Barr, Stratford, Conn.; do not use polish - a polishing rag is all that is necessary.
A portable electric lamp by C. H. Barr, ca. 1915 / unidentified photographer. National Arts Club records, 1898-1960. Archives of American Art, Smithsonian Institution.
U.S. public domain
Archives of American Art, Smithsonian Institution Washington, D.C. 20560