picture description: This is a photo of a 1950's electric fan. The power lead goes from the fan and leaves the left side of the picture. We cannot see the plug. The fan has four blades. The shield is a rough circle of wire slightly larger than the blades, held from the center by seven pieces of wire. The pieces of wire radiate out from the centre of the fan, and are roughly sinusoidal along the direction of their vector. The fan blades are made of steel and are held to the hub by two rivets each. The base is black and shiny.