AD PUTEA (Petar Banov – plevenmuseum@dir.bg) The castellum covered an area of c. 1.3 ha and existed from the second half of the 3rd to the first decades of the 5th century AD. Thracian sherds of the 11th – 6th centuries BC were discovered on the site as well. In Sector 1 the watchtower built in c. AD 250 was excavated. It measured 14 m by 13 m and was used as barracks as well. Its walls were 1.90 m wide, built in opus mixtum. The roof that collapsed during the fire was discovered on the floor of the tower. Burned remains from two wooden chests, which contained grain, probably einkorn, were discovered as well. Seven copper coins of the last decades of the 3rd – 4th centuries AD were found. In Sector 2 two rooms were explored, adjoining the western side of the watchtower. The lower parts of their walls were constructed in rubble masonry and the upper parts were built of sun-dried bricks. The roofs were covered with tegulae and imbrices. Sherds were found, mostly from pitchers, amphorae and pots. An altar with a Latin inscription of the beginning of the 3rd century AD was discovered, being reused as a step between Rooms Nos. 3 and 4. A second altar with a Latin inscription was discovered, devoted to Jupiter by Sorcius Probus. A coin of Honorius was found as well. In Sector 3 the foundations of a tower on the fortification wall were explored. The tower measured 3.60 m by 3.60 m, with walls 1.30 m wide and built in mortared rubble. In Sector 4, at 9 m to the south of the watchtower, two rooms built in rubble masonry were discovered, probably belonging to a workshop. Fragments from tegulae and imbrices from the roof were discovered. The finds included lead and glass melts, a stone pan for pouring the melted lead, a fishing hook, two terracotta net sinkers and sherds of the 4th – beginning of the 5th century AD. In Sector 5, at 11 m to the south of Sector 4, two bases for columns and pilae constructed of bricks for a hypocaust were discovered.