A vintage 1970s technical illustration showing a large mechanical sorting machine with multiple brass funnels and conveyor belts, processing thousands of colorful paper documents that flow through categorized chutes. The documents transform from chaotic streams at the top into neatly organized stacks in labeled wooden compartments below. Warm sepia tones with pops of mustard yellow and burnt orange. Intricate cross-section view revealing gears, pulleys, and sorting mechanisms inside. The scene has the aesthetic of a retro encyclopedia diagram with subtle paper texture and aged patina around the edges. Steam wisps rise from the machine, suggesting active processing. Small geometric shapes (triangles, circles, squares) float among the documents, representing data being classified and reduced into meaningful groups.