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We report on the design, development and stage-wise deployment of a new histogram display subsystem at the National Superconducting Cyclotron Laboratory (NSCL). This subsystem is based on the X/Motif graphical user interface library. The development cycle and feature set of this subsystem are described. We describe why we felt it was necessary to write a new package rather than to work with existing packages. The paper will also discuss the communication between the client and Xamine. This communications allows Xamine to cooperate with client programs providing the illusion of a unified GUI shared between the display subsystem and the client program.