Between 2019 and 2022, a new archaeological research program was dedicated to the southern side of the Tusculum forum. The investigations have provided significant new data for our knowledge of the changing landscapes of this part of the ancient city over time. Among the discoveries made were a group of fragments related to an architectural apparatus in polychrome stucco characterized by the presence of figured corinthian capitals. This type of architectural production is particularly widespread in Italy (Sicily, Magna Graecia and Etruria) during the Hellenistic period, and around it a long lasting debate is open about the origin of the model and its chronology and the agents and dynamics of its diffusion in the different contexts of the peninsula. In the case of Tusculum, the possibility of knowing the stratigraphic context in which these artifacts lay and the topographical layout of the forum over time allow us to develop some reflections on the time of the production of this architectural apparatus, the related historical and socio-cultural context and, finally, the craftsmen who created it.