Around 1987, the investment bank I worked for had a high-end graphics device, possibly from Evans & Sutherland, which produced an "animated" display not unlike the view from the front seat of the first car of a roller coaster. Here it was possible to "ride the graph" given a time series of stock prices of IBM or whatever. As such, this device was used solely for demonstration.
Would anyone know what device this could have been or if any pictures or videos exist of its output?