Form 37; the former is thought to have gone out of production by c. A.D. 85 and thus a date of c. A.D. 70-90 may be suggested for the earliest occupation of the castle site. Whatever the eventual interpretation of the structures partly revealed in 1974, occupation at this date is most likely to be related to military activity and a fort connected with the Flavian occupation of Wales and located on or near the Castle site seems probable. A few finds of second century date suggest that some occupation nearby in the Antonine period may be expected. However, the next construction phase on the site may be associated with the later Roman Fort, the external walls of which form the basis for the present castle perimeter. Features of this period located consisted of a cobble spread, itself penetrated by a third-fourth century pit con- taining considerable iron slag and, lying to the east of the cobble, a number of timber building foundations. These latter only intruded about 1m. into the area excavated and proved to be both rather ephemeral and lacking in dating material. They were ,however, orientated with the Late Roman Fort and may well belong with it in date. As yet there is insufficient material from later Roman levels as a whole to give more than a general third-fourth century date to this phase. Janet & Peter Webster MEDIEVAL PERIOD Cardiff Castle The earliest Medieval feature noted was a pit containing part of a twelfth-century fire pot and located at the extreme west of the excavation. This pit had been largely cut away by a cellar approxi- mately 1.50m. square and lm. deep, stone-built and mortar-lined and approached by steps from the south. This cellar was filled with collapsed roofing material sealing a deposit which included a coin dated by Mr. G. C. Boon to c. 1500 and two almost complete pots provisionally dated by Mr. J. M. Lewis and Mr. S. Moorhouse to the early sixteenth century. The cellar formed part of a stone building extending both west and north of the excavation. To the east of this structure a single stony foundation trench ran north-south