A "fan antenna" or "harp antenna", a type of early wire radio antenna used by high power spark wireless telegraphy radio stations between about 1900 and 1920. It consists of a horizontal wire stretched between two towers, with many vertical wires extending up from the transmitter building to it in a "fan". This example is at a Telefunken station in Scheveningen, Germany. It was used for radiotelegraphy transmission by spark gap transmitters on LF or VLF bands. The concept was that the multiple parallel wires would lower the antenna's resistance and raise its capacitance to ground, increasing antenna current. Alterations to image: enhanced the sharpness to bring out the wires against the sky using the "unsharp mask" filter in GIMP