ARCHAEOLOGICAL EXPLORATIONS IN DEULTUM (Krasimira Kostova – kr.kostova@mail.bg, Elka Docheva, Maria Manolova-Voikova) The sondage was widened on an area of 50 sq. m to the east. A layer formed after the construction of the Early Byzantine fortification wall, 48 – 90 cm thick, was explored. The finds include sherds, two bronze coins of the second half of the 5th century AD, a terracotta lamp, an iron arrowhead and an amphora of the 8th – 9th century AD. The exploration of the sector in front of the eastern fortification wall and the bastion continued. Coins of the 4th century AD, minted by Constantine I, Constantius II and the latest one minted by Valens, were found in the layer of debris. Probably, the Gothic invasion in Thrace in AD 377 – 378 was the terminus ante quem for the existence of the public baths. Systems of water-conduits and drains were discovered in the baths. The eastern end of the room with a hypocaust was documented. An air duct crossed the room. The finds include a carnelian gem showing two eagles, fragmentary unguentaria, carnelian and bone beads, fragmentary bone hair-pins, fragmentary terracotta lamps, five Roman bronze coins of the 1st – 3rd centuries AD. The coins of the 1st – first half of the 2 centuries AD allow us to suppose that the public baths were built during the first several decades after Colonia Flavia Pacis Deultensium was founded, i.e. at the end of the 1st or the beginning of the 2nd century AD. Four pre-Roman bronze coins were found in the foundations of the baths.