Collas, A., & Edwards, E. (1837). The great seals of England from the time of Edward the Confessor to the reign of his majesty William the Fourth: Illustrated by thirty-eight plates, containing exact fac-similes of the seals in their present condition. Henry Hering.

Collas, Achilles, and Edward Edwards. The Great Seals of England from the Time of Edward the Confessor to the Reign of His Majesty William the Fourth: Illustrated by Thirty-eight Plates, Containing Exact Fac-similes of the Seals in Their Present Condition. Henry Hering, 1837.