Timelines are recurrently used to design visualization techniques of temporal data. In this paper, we present our perspective wall timeline to visualize temporal values. We illustrate how our timeline could be used by two examples of visualization techniques of temporal data: the star representation technique and the superposed histograms technique. In this paper, we propose to use a dedicated physical device for the perspective wall timeline, making the reusable corresponding software component a reusable physical device. Then, we present the results of an experiment we have conducted to compare the time device to the timeline (software component). Finally, we conclude and present our perspectives. CATEGORIES AND SUBJECT DESCRIPTORS: H.5 [Information Interfaces and Presentation]: User interfaces; B.4.2 [Input/Output and Data Communication]: Input/Output Devices. GENERAL TERMS: Human factors KEYWORDS : temporal data visualization, timeline, physical device, evaluation of user interfac...