Keywords: Ponte Maria Pia (03).jpg Photograph Unknown en Construction of the D Maria Pia railway bridge near the city of Oporto in Portugal Situation of the works in 24 June 1877 pt Construção da Ponte ferroviária D Maria Pia junto à cidade do Porto em Portugal Situação dos trabalhos em 24 de Junho de 1877 1877-06-24 Technique photograph b w Institution Calouste Gulbenkian Art Library object history exhibition history credit line accession number CFT003 034863 ic http //www flickr com/photos/biblarte/4088635135/ Info / Pic PD-old-auto 1915 Emílio Biel Ponte Maria Pia Porto in the 19th century Files from Calouste Gulbenkian Art Library Bridge construction in Portugal Files uploaded by User JotaCartas Historical images of bridges in Portugal |