This vintage advertising poster from the year 1900 highlights the "Wiesenthäler Gewerbe-Ausstellung" in Loerrach, a major industrial and artisanal event held from July 28 to August 26. The central scene depicts a worker or engineer dressed in a light shirt, focused on a detailed technical plan illustrating a gear, symbolizing the industrial and mechanical progress of the late nineteenth century. On the side, a voltmeter marked "Volt" can be seen, reflecting the electrical aspect associated with this exhibition, integrated into a specific section dedicated to electrical technology (Elektrotechnischen Ausstellung). The entire image is framed in a graphic style characteristic of Art Nouveau, with a subdued color palette dominated by shades of brown, blue, and beige. This poster is a remarkable example of vintage wall decoration for enthusiasts of industrial history, retro design, and antique posters. It fits perfectly as a thematic wall decoration in an office, workshop, or living room, adding an authentic and graphic touch. This wall art also illustrates the importance of trade exhibitions in promoting technical innovations on the eve of the twentieth century. Its retro aesthetic and historical message make it a must-have vintage poster for lovers of historical and industrial wall decor.