Summary form only given. The Laboratories of Photogrammetry and Microinformatics of the Swiss Federal Institute of Technology of Lausanne have developed, in collaboration with the industry, a graphical verification system. The main innovations of this system, in comparison with the above cited existant systems, are full editing facilities, the possibility to include the height information, and a rather low price. Furthermore, the system can be used as a peripheral for analytical or analog stereo plotters. These innovations are due to the development of a powerful display architecture with build-in dedicated panning functionality. This paper describes the characteristics of the hardware and the possibilities provided by the software. The system is based on a Motorola microprocessor and NEC graphical controller chips. It allows the operator to move in real-time (panning) in a virtual working space of 32000×32000 pixels, with a vertical and horizontal resolution of 1 pixel