(1) The quoining consists of a long stone set at the corner, and a short one lying on it and bonding into the wall.
(2) The use of large heavy blocks of stone in some parts, while the rest is built of Roman bricks.
(3) An arch with straight sides to the upper part instead of curves.
(4) The absence of buttresses.
(5) The use in windows of rude balusters.
(6) A rude round staircase west of the tower, for the purpose of access to the upper floors.
(7) Rude carvings in imitation of Roman work. (Rickman.)