Key points are not available for this paper at this time.
David R. Rudling, Caroline Cartwright, Giles Swift, Sally Foster, John Shepherd, Pat Hinton, Fred Tebbutt, The Excavation of a Roman Tilery on Great Cansiron Farm, Hartfield, East Sussex, Britannia, Vol. 17 (1986), pp. 191-230
Rudling et al. (Wed,) studied this question.