original early 20th century vintage american industrial "white" articulating machine shop or factory task lamp. features a brass-plated pressed steel parabola-shaped rolled rim reflector with patented swivel mechanism (i.e., neck of the reflector affixed to the end of the socket). the fixture retains the hard to find cast iron o.c. white stationary base with four mounting holes. the sectional ball and socket cast iron "knuckle" joint is completely intact and in excellent working condition. patented by otis c. white in 1893, the versatile joint received many awards and medals (e.g., franklin institute, of philadelphia, the massachusetts charitable mechanics association, of boston, etc.) for its remarkable originality, both in design and execution. the cast bronze wrist joint contains lightly incised manufacturer markings. the paddle switch edison socket has been rewired. fabricated by the otis c. white company, worcester, mass.