Whale Oil Lamp

The image shows two glass lamps. The lamps have clear glass stems with a series of stacked, rounded sections of varying sizes. The base of each lamp is wide and circular. The top portion of each lamp is a clear glass container with a wick inside and what appears to be a whale oil reservoir. The wick is surrounded by a white substance, likely the whale oil. A black metal piece encircles the top of each glass container. A twisted rope-like material protrudes from the top of each lamp. The background of the image is white. The lamps appear to be antique Whale Oil Lamp by an unknown artist.