AD 820: Plan of Saint Gall
- Period: AD 820
- Location: Reichenau, Switzerland
- reference: https://en.wikipedia.org/wiki/Plan_of_Saint_Gall
- description:
- Made by joining five pieces of parchment together.
- A drawing dedicated to the abbot of the Abbey of Saint Gall, proposed for the purpose of housing the relics of Saint Gall who founded the monastery, but it was never actually built.