Detail of the rebus of John Dygon's signature as a spade with 'dyg' and scrollwork letters 'ON'. Image taken from f. 25v of ~Speculum Theologiae~ diagrams, Peter of Poitiers,~ Genealogia historiarum~, and biblical tables. Written in Latin.
Autori: Peter of Poitiers'
Dimensioni: 290 x 210 (220 x 150), in one, two and three columns
Paese: England, S. E. (London or Sheen Priory, Surrey?)