The project investigates the active role of resources considered functional or operational in shaping the production, circulation, and consolidation of architectural knowledge. It focuses on a largely ‘forgotten’ university teaching slide collection depicting buildings in Christchurch, Aotearoa New Zealand, produced in the late 20th century, approaching it as an infrastructure facilitating a postcolonial renegotiation of architectural history, cultural memory, and postcolonial identity. Shifting the focus from iconographic relevance to infrastructural politics, the project situates the collection within a larger historical arc and transnational slide distribution networks, while examining how institutional and professional frameworks defined certain materials and collections as valuable or authoritative while rendering others peripheral. In doing so, it traces the emergence, integration and relevance of historically overlooked alternative archives within global knowledge infrastructures.