Descrizione delle chiese di Narni e suoi dintorni le più importanti rispetto all'antichità e alle belle arti
Giovanni Eroli's survey of the churches of Narni and its surroundings, printed by Tip. Petrignani in 1898 for antiquarians and students of church architecture and Christian art. Line engravings and pencil surveys record altars, tabernacles, choir screens, carved friezes and inscribed plaques, with measured elevations and plans useful for architectural ornament, lettering and Renaissance relief motifs.
