Minimal modern Risszeichnung on cream paper: a vertical bureau cabinet cutaway, with sealed raw-source drawers at the base, a linked page lattice in the middle, and a small schema console at the crown. Thin green structural lines trace every page back to a numbered original file; one narrow signal-cyan filament remains visible from root drawer to upper card. A single hot-pink organic paper tab grows from a provenance slot. The cabinet is built around a real honeycomb frame, with registration crosses at the corners. German numbered legend lower right: 01 QUELLENFACH, 03 SEITENGEFLECHT, 05 PRÜFSPUR, 07 UNBEKANNTE ABSICHT. One small BRAINHUGGERS BUREAU · SYMBIOSE-ARCHIV seal is struck once beside it. Clean Braun/Rams linework, broad off-white ground, no title block. Output in exactly 1122 x 1402 px, 4:5 portrait ratio.