Boletim de architectura e de archeologia da Real Associação dos Architectos Civis e Archéologos Portuguezes
A Portuguese journal of architecture and archaeology issued in Lisbon in 1876 by the Real Associação dos Architectos Civis e Archeologos Portuguezes, aimed at scholars and practising architects. Its plates are pages of hand-drawn medieval mason's marks and sigla, shown as black line glyphs on white with printed captions and section headings, which a designer could use for abstract symbol systems, monogram ideas, or rune-like lettering.
