Antiquitates Italicae Medii Aevi, Sive Dissertationes De Moribus, Ritibus, Religione, Regimine, Magistratibus, Legibus ... post declinationem Rom. Imp. ad Annum usque MD: Omnia Illustrantur, Et Confirmantur Ingenti Copia Diplomatum Et Chartarum Veterum, Nunc primùm ex Archivis Italiae depromtarum, Additis Etiam Nummis, Chronicis, Aliisque Monumentis Numquam Antea Editis
Muratori's 1778 Latin scholarly work on the customs, religion, government and laws of medieval Italy, edited by Lodovico Antonio Muratori and drawn from Italian archives for an audience of historians and antiquarians. Its pictures are small printed seals and monograms: circular papal seals bearing Saints Peter and Paul and papal names in roman capitals, plus a block monogram of letters, all in dense black ink on laid paper. A designer could draw on their radiating cross-and-circle geometry and cut-letter lettering for emblem or logo work.
