The Crédit Foncier d'Algérie et de Tunisie was the leading mortgage banking institution for the French colonies of North Africa. This registered share certificate of 500 francs, bearing the mention CANCELLED, dates from the period 1936-1937, a troubled time marked by rising political tensions in France and the questioning of the colonial system. The cancellation of the certificate may result from a buyback, merger, or capital restructuring operation. Cancelled share certificates have a particular value in scripophily because they are often better preserved than circulating certificates and bear official cancellation marks (perforations, stamps) that serve as authenticating elements. This document perfectly illustrates the role of mortgage-credit institutions in the economic development of Algeria and Tunisia under the French protectorate.