all original antique american industrial gooseneck type "esrobert" factory office table or desk lamp fabricated around 1919 by s. robert schwarts & co., new york city, ny. the yellow brass industrial lamp contains a weighted cast iron base supporting a tubular extension pole with pre-drilled hole for lamp cord. the double-sided, threaded end marked brass gooseneck arm retains its rigidity regardless of angle of adjustment. the highly desirable brass-plated harvery hubbell parabola-shaped reflector retains the original metallic (reflective) silver interior finish. the push button weber socket is original and intact. measures 25 1/2 x 6 1/2 inches.