Stamp used for correspondence: on the occasion of the Stamp Day, in its jubilar, 20th year of publishing stamps, Croatian Post has decided to issue a stamp of a reinforced and unusual communication potential. The stamp has been used to mark the legitimacy of mail and payment for the service. It also had the task to present the system of power (the person of the ruler) in which it functioned. Yet, far away from the fully functioning world, still in times that appreciated the gifts of incidentality, the stamp has reached for the values of picture and has elaborated a rich communication repertoire which we also use to date. In this way the stamp has arranged history in a new way, it has chosen great personalities from different nations, it has sent out the patterns of natural and artistic beauties into global exchange, evaluated the present and historised it, recognised the affinities and differences between countries and in thousand ways shed light over the condition humaine. By reading the code and the web address from the stamp at the same time the journey of the stamp, the length of the way it passed, the position on the Google map, the destination of other QR stamps, a series of data about the project, the gallery with data about Croatian postage stamps is being opened in front of us, on the occasion of the 20th anniversary of Croatian stamp. The users can add their own texts and pictures, different (e.g. tourist) information about the destination of the stamp etc. And transmit all that also to social networks. The stamp shows to what degree the traditional form and function can accommodate to new technologies, becoming an exciting, small treasury of dynamic contents.This product of a new reality marks in an indeed appropriate way the twenty years of efforts of Croatian Post to keep the pace with the rest oft he world, even more, to be slightly ahead.