Our project enhances the accessibility of ancient manuscripts and provides new ways of working with them. More precisely, we air to produce a software tool allowing historians, and more particularly codicologists and philologists, to read manuscripts, write annotations, and navigate between the words of the transcription and the matching piece of the image in the digitised picture of the manuscript. In this paper, we present the design of such a Hypermedia Workstation.It is based on the standardized hypermedia language HyTime (Hypermedia/Time-based Structured Language). We describe how HyTime can be used as a modelling language to describe works on manuscripts. We present relevant parts of the HyTime model and prove that the model thus obtained can also serve as a basis for implementation.