Dictionnaire raisonné de l'architecture française du XIe au XVIe siècle
Eugène-Emmanuel Viollet-le-Duc's illustrated dictionary of French architecture from the 11th to 16th centuries, issued in Paris by A. Morel in 1875 for architects, restorers and students of medieval building. The plates are measured line engravings—sections, elevations and cutaway details of vaults, window tracery, masonry coursing and mouldings, keyed with letters and scale bars—useful as technical diagram stock and hatching patterns.
