Vintage Drafting / Architect Lamp.

Lamp works great with switch on top of shade. Brown Dazor boom arm lamp (model P-1124-16) with brown long rectangular light shade. The shade has tape residue. Light works great.

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 18 1/2" long. ref 29213-BT37.