“…This decoration occurs on the convex side only, and it would appear that this was done in order to show on the outer side. The first description of the bricks comes from Hiernaux and Maquet (1957); not dissimilar britks appear again in historic times (Bourgeois, 1957). The latter author describes the use of freshly-made bricks in furnace building, as well as of fired bricks which were taken from earlier furnaces.…”