Issue No. 08 - November (1983 vol. 3)
Envision has introduced the 215 color text/graphics terminal and the 239 color graphics display station. The 13-inch terminal offers color graphics and alphanumeric capabilities, while the 19-inch display station features local graphics processing capabilities and high-resolution color display for use in tabletop or rack-mount configurations.
Carl Machover, John Dill, "New Products", IEEE Computer Graphics and Applications, vol. 3, no. , pp. 86-91, November 1983, doi:10.1109/MCG.1983.263331