The BASA Museum of the Department for the Anthropology of the Americas at the University of Bonn holds more than 10,000 objects, the majority of which are from the Americas. A smaller part of the collection also includes objects from Africa, Asia and Oceania. The collection focuses on archaeological objects from the Andean region and Mesoamerica as well as ethnographic objects from the Amazon region and the Andean highlands. The provenances of these objects lie outside of formal colonial rule (case group 2) as defined by the German Museums Association (DMB) guidelines for handling of collection items from colonial contexts. Determining the quantity and value of objects from colonial contexts is only possible through provenance research.
In the WissKI database, used by the BASA Museum since late 2019, around 950 objects are currently publicly accessible. The long-term objective is to gradually make the entire collection accessible through the database.
Currently accessible objects mainly include those from the Trimborn and Oberem collections from Central and South America. Hermann Trimborn founded the Department of Ethnology and the Ethnological Teaching and Study Collection at the University of Bonn in 1948, thereafter acting as director of both. Udo Oberem was Trimborn's student and successor. The objects from both collections were transferred to the Teaching and Study Collection in the 1950s and 1960s. They originate predominantly from the Andean highlands and Costa Rica and include a roughly equal number of archaeological and ethnographic artifacts acquired on research trips.
The information on objects from the Trimborn and Oberem collections in the database is taken from the respective inventory book and index cards. The latter were created retrospectively for individual artifacts with the help of student assistants from the 1970s onwards. The provided information may therefore not be up-to-date with the current state of research. The research database will be updated with new findings about the objects from ongoing and future projects conducted by students and researchers as well as from collaborative research with members of the societies of origin.