You can find higher-quality JPEGs (yes, still lossy, and not super high quality) by replacing: Thumbnail: https://codex-atlanticus.ambrosiana.it/assets/100/00

You can find higher-quality JPEGs (yes, still lossy, and not super high quality) by replacing: Thumbnail: https://codex-atlanticus.ambrosiana.it/assets/100/000R-220.jpg https://codex-atlanticus.ambrosiana.it/assets/100/000R-220.j... Direct Image URL (default, 500 pixels wide) https://codex-atlanticus.ambrosiana.it/assets/500/000R-220.jpg https://codex-atlanticus.ambrosiana.it/assets/500/000R-220.j... Higher Quality (2,000 pixels wide) https://codex-atlanticus.ambrosiana.it/assets/2000/000R-220.jpg https://codex-atlanticus.ambrosiana.it/assets/2000/000R-220.... Obviously, you could script something to grab them all (like `for i in {1..1118}; do wget "https://codex-atlanticus.ambrosiana.it/assets/2000/000R-$i.jpg https://codex-atlanticus.ambrosiana.it/assets/2000/000R-$i.j..."; done`) I don't know what other directories like 100, 500, or 2000 are available, but there might be something higher than 2000.