This article presents some recent acquisitions of the Museum of Roman Ships at Nemi, consisting of highly significant documents, photographs, and artefacts. Particular attention is devoted to the 2022 donation by Francesco Meschini, grandson of Colonel of the Naval Engineers Luigi Tursini, who in 1949 was entrusted with the reconstruction of the 1:5 scale models of Caligula’s ships, exhibited at the reopening of the Museum in 1953. The donated materials include photographs of the reconstruction and installation of the models, their transport to Nemi, and the reinstallation of the finds, together with a set of plans and drawings (1949–1959) which provide a detailed record of Tursini’s museographic projects, from the first layouts to later, but unrealised, extensions. The article also discusses further donations, such as that of the Neri family, which includes documents by engineer Biagini, photographs of the recovery operations, and a bronze copy of a wolf-headed beam terminal. Taken together, these materials offer new perspectives on the history of the ships, the post-war reorganisation of the Museum, and the exhibition strategies adopted.