early 20th century american industrial refinished o.c. white kuckle-joint adjustable table or desk lamp

hard to find early 20th century refinished and rewired vintage industrial triple adjustable arm factory workbench task lamp with original green enameled "slim helmet" hubbell steel reflector. the factory lamp contains two distinct and completely intact sectional ball and socket cast iron "knuckle" joints in excellent working condition. patented by otis c. white in 1893, the versatile and attractive faucet handle joints 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. fabricated by the otis c. white company, worcester, mass. heavy weighted base made of cast iron. all metal components (with the exception of the shade) have been refinished.