Extraordinario libro di architettvra
This is a 1551 Italian architectural treatise by Sebastiano Serlio, printed in Lyon by Giovan di Tournes, presenting designs for doorways and portals for builders and architects. The four engravings show frontal elevations of triumphal-style arches with pediments, columns, rusticated voussoirs and niches, drawn in clean line with light hatching. A designer can take from them a ready vocabulary of classical doorway proportions and ornament, from plain Doric-like to richly decorated Mannerist forms.
