Regola delli cinqve ordini d' architettvra
Giacomo Barozzi da Vignola's rulebook on the five classical orders, first issued 1562 and reprinted in Rome by Henricus van Schoel in 1602, with a set of Michelangelo door designs appended, made for architects, masons and students. Engraved plates show columns, arcaded bays, entablatures, capitals and gateways in measured elevation, annotated with module figures — sources for architectural line ornament, frame motifs and proportion diagrams.
