rare and highly sought after original 19th century early american electric "dale portable" table or desk lamp with an emeralite green case glass pyramidal-shaped shade or reflector. the exceptional antique table lamp was fabricated by the dale mfg. co., new york city, ny. the lamp is supported by a solid cast iron weighted base concealed with a spun yellow brass cover plate bearing the dale emblem in the form of lightly incised lettering within a diamond shape. the upright support is comprised of tubular brass, with the lower section featuring a twisted rope motif. the fanciful bent tubular arm moves up and down and backwards and forwards. two adjustable dials with knurled edges tighten the arm at the desired position. the union paddle socket has been rewired with period appropriate braided cloth cord. remarkably, the original oxidized copper plate finish remains amazingly intact.