Wet Lab, a silver-gelatin colour close-up of a black civic archive pump on a steel examination tray, 4:5 portrait. Translucent intake membranes draw tiny query cards through a real hexagonal honeycomb filter; one ultraviolet band of sealed request vials glows at the rear. A gloved hand gently turns a hot-pink emergency valve while an overworked pressure gauge trembles beside it. Filing-layer callouts label 01 intake membrane, 02 rate-limit chamber, 03 public-service shutoff. An ordinary library card is caught inside the filter mesh. Near-black surroundings, hard warm key light, deep shadow, circular Bureau seal struck once. No faces, German or illegible in-image lettering. Output in exactly 1122 x 1402 px, 4:5 portrait ratio.