AbstractIn 1937–38, the American doctoral candidate William R. Bascom conducted anthropological research in the sacred Yorùbá city of Ilé-Ifẹ̀, Nigeria. Bascom’s visit was a decisive moment in the history of African art, as, in 1938, he observed the chance discovery of unique copper and copper alloy heads, two of which he acquired and exported to the USA. Bascom’s actions in 1938, and his subsequent conflicts with British officials who demanded the return of the heads in the 1940s, have become matters of controversy and scholarly debate. Historian Robert Tignor and anthropologist Simon Ottenberg have presented contrasting arguments regarding the affair. This article draws on material from several archives to shed further light on this discussion, resolve remaining areas of dispute, and explore what the study of this controversy tells us about the nature and practice of anthropology, the impacts of Western exhibitions of African art, and early cultural preservation and repatriation efforts of the late colonial period. At a time when colonial-era collecting practices are facing increased critical re-examination, and with intensified calls for the repatriation of Nigerian cultural patrimony in Western museums, this article reflects on how the study of this controversy contributes to present restitution efforts.