This striking stamp from Germany commemorates the opening of the Geiseltal tunnel (1945–1989), a significant engineering and industrial achievement in the country’s mining history. The design features a dramatic night-time scene of illuminated tunnel infrastructure, capturing the scale and intensity of lignite mining operations. The stark contrast between light and shadow gives the stamp a powerful industrial aesthetic, typical of German commemoratives of the 1990s. Issued in 1995, it reflects on the historical importance of the site spanning both wartime and post-war eras. A compelling piece for collectors interested in industrial heritage and German reunification-era issues.