Golden Spiral Poster — Outline

Quarter circles in successive squares; consecutive radii are in the ratio φ ≈ 1.618. Poster on 200 g satin paper, dark or ivory background, format of your choice: A4 (21 × 30 cm), 30 × 40 cm or 50 × 70 cm. Outline style: the figure on its own, surrounded by its construction marks (graduations, compass arcs) and its name.