PATRICK LANDMANN / SCIENCE PHOTO LIBRARY PATRICK LANDMANN / SCIENCE PHOTO LIBRARY
Editorial use only.
Manufacturing coloured pencils. Factory technician dipping coloured pencil lead into Japanese wax. This process is called impregnation and means that the lead will write more smoothly. Photographed at the Conte and Caran d'Ache factory, Switzerland.
Model release not available. Property release not required.