early 20th century antique american industrial factory foreman's adjustable gooseneck brass desk lamp with harvey hubbell parabolic shade

early 20th century 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.