Travelling on the train from Crailsheim to Nürnberg I saw several police officers on their travels back from an assignment at Stuttgarter Volksfest. When we got off the train the collected their caps from the luggage rack and observed an interesting (traditional) information display.
Inside the cap they carried a schedule and a description of the location they had to go. The size of the paper-display was about 15 x 15 cm. It seems an interesting place to display and access information – perhaps we will do a digital version of the cap as an assignment in our courses.