The paper investigates the epigraphic collection that Gian Domenico Bertoli (1676-1763) put together in his house in Aquileia and that became one of the Aquileian memorabilia known to European scholars. In addition to Bertoli the collectionist, Bertoli the antiquarian is also examined: in his published and unpublished Antiquities he also collected many inscriptions that he had seen or copied from others, including some fakes.