Issued during the peak of Germany’s 1923 hyperinflation, this striking red stamp bears an overprint reading “10 Milliarden” (10 Billion Marks). The base design, originally for lower denominations, was reused as the currency collapsed, leading to astronomical postal rates. The intricate guilloché pattern radiates from the center, contrasting with the bold overprint symbolizing economic turmoil. A key piece of Weimar-era postal history, it vividly captures the chaos of post–World War I inflation and remains one of the most iconic symbols of Germany’s economic crisis.