Note 218 — Chapter VII · THE PERIOD OF TRANSITION: CYLINDRICAL TOWER-KEEPS
Reading edition
In 1277 the castle of Flint was a timber structure, so that the present work cannot be earlier than the end of the thirteenth century. The masonry is composed of large blocks of yellow sandstone, decayed where they are exposed to the tide. There was an outer bailey, the platform of which alone remains, with a ditch between it and the castle proper.