The collection entered the Museum in November 1957, donated by Dr. Lucía Negrette. There are no records of this donation or in the Museum, neither in the Faculty of Humanities, nor in the Faculty of Medicine, where the collection came from. The documentation of procedures carried out of this type of management is not archived in either of the two faculties. As far as the museum is concerned, we believe that these records were lost or destroyed because of the coups d'état and the closure of the race and the museum itself. The only thing we have been able to reconstruct, based on interviews with María Teresa Carrara, Miriam Tarragó and Nélida De Grandis, is that the collection was removed from the building of the Faculty of Medicine and kept, from the donation, in the Museum in the Faculty of Humanities. Dr. Lucía Negrette was a professor of Bromatology and Qualitative Analytical Chemistry in the Biochemistry and Pharmacy career of the Faculty of Medicine of the Universidad del Litoral (Bosch 1966: 129). The collection consists of a great variability of materials that it is not known how they came into the hands of Dr. Negrette. It is possible that she kept them as a form of collecting, very common for the time. There are ceramics, textiles and books from different origins of Argentina. Among them we can highlight a series of ceramic pieces from the Arroyo Leyes, lithics from Patagonia and the collection of fabrics that, according to records in the entry sheets, came from the area of the Pilcomayo River in Fomosa, among other pieces.