During the 'Esposizione delle missioni cattoliche americane' in 1892, part of the ethnographic collection by Count Ermanno Stradelli, which can be found today in the museum of castello di Rivalta, reached the city of Genoa. The Author examines how this collection was put together in Amazonia in between the years 1881 and 1891 and describes the man Stradelli as an accurate researcher of the indigenous cultures, exposing the reasons behind his collection of material assets related to the culture of the Uaupés ethnicity.