1. Sketch of Mountain Area with Road System Collection: Images from the Rare Book and Manuscript Collections Format: Image
3. Frontal View Drawing Collection: Images from the Rare Book and Manuscript Collections Format: Image
4. Prometheus und Ephiretheus Collection: Images from the Rare Book and Manuscript Collections Format: Image
6. Large Drawing -- Front Collection: Images from the Rare Book and Manuscript Collections Format: Image
7. Large Drawing -- Back Collection: Images from the Rare Book and Manuscript Collections Format: Image