"Fultograph" radio picture receiver

The "Fultograph" is a terminal for private image reception via radio. Together with a rectifier, it is connected directly to a radio receiver. Divided into a grid of 700 x 800 pixels, the reception time of an image of a maximum of 9 x 13 cm is about 4 minutes. The image is electrochemically drawn with a platinum pencil on special paper. It must be soaked with an iodine salt solution (marketed as a "Fultograph solution").