Vintage Drafting / Architect Lamp.

Lamp works with switch on top of shade however only one bulb lights up. Brown Dazor boom arm lamp (model P-2124-16) with brown long rectangular light shade.

All metal construction with neat Modernist style. The knuckles work great. The base has original triangle mount with adjustable angle clamp with wingnut.  The base has a 2" x 2 1/2" mount. The lamp shade is 19" long. The longest arm is approx 25" long. ref 29267-BT46.