This is a lovely vintage Wilmot Castle Dentist inspection lamp... Not sure of it's year (1950's?)... It's fully articulated and has an amazing (smooth) range of movement in all directions... It casts a really nice light and would be perfect as a 'pull-down' lamp for a large dining room table, but it would look excellent lighting anything... The pressed Aluminum shade measures almost 23" across the opening... It has a standard 110V screw in bulb fitting... It attaches quite easily to any secure ceiling... It's all in excellent working condition (couple of minor dings in the shape) and is a little dusty in the pictures but cleans up really nice... I've looked around and I can't see another one like it...