Corbie step

Corbie step, stone used for covering any of the steps or indentations in the coping (uppermost, covering course) of a gable; the term is also applied to the step itself. Corbie steps were common in late medieval buildings of the Netherlands and Belgium and occurred frequently in 15th-century Scottish architecture. They also appear in some 15th-century English houses, such as Oxburgh Castle, Norfolk (1482).