Go back to article: Visualising electricity demand: use and users of a 3D chart from the 1950s

Figure 9

Colour photograph of two individual chart cards from a 1950s three dimensional chart showing electricity demand over time

© Science and Industry Museum/Science & Society Picture Library

Scissor marks at the base of the ‘valley’ and paper tags in corners suggest the cards were cut with scissors or clipped

DOI: http://dx.doi.org/10.15180/180905/015