A list of the contributing companies will ring many bells from this era: Cia. de Carris, Luz e Força do Rio de Janeiro; Sloper and Co. Ltd.; Anglo-Mexican Petroleum; Bank of London & South America; Cia. Brasileira de Cimento Portland; Davidson, Pullen and Co.; Leopoldina Railway Co. Ltd.; Rio de Janeiro City Improvements Co. Ltd.; Rio de Janeiro Flour Mills and Granaries Ltd.; St. John D’el Rey Mining Co. Ltd., better known as Morro Velho Mine; Wilson Sons and many others.