A vintage 1960s-style illustration of interconnected paper documents flowing through a complex network of pneumatic tubes and mechanical conveyor systems, forming an intricate web between different ornate Victorian-era buildings. The documents feature visible geometric XML-like hierarchical tree structures printed on them in deep blue ink. Warm sepia and amber tones dominate the color palette, with brass machinery and copper tubes creating an industrial aesthetic. The perspective is slightly isometric, showing the elaborate document routing system from above at an angle, with steam wisps and mechanical gears visible throughout the scene.