Illustrations: Full-page engraving on half-title verso; engraved historiated title-page; engraved folding plates; woodcut initials, head- and tail-pieces

Includes index

Bound in old decorated paper-covered boards; mottled leather spine and corners; gilt spine, with gilt read leather label; edges stained red; stamp of Biblioteca Malvezzi de Medici on first blank leaf

[12], 164, [8] pages, [9] folded leaves of plates : 33 cm (fol.)

Attributed to Petrus Mallius. Cf. Fabricius, Bibliotheca latina, v. 5, p. 252

Signatures: pi² a⁴ A-S⁴ T⁶ V-X⁴

Gathering a1-a4 bound between leaves pi1 and pi2

Engraved title page; title within architectural frame

Head-pieces; initials; printed marginal notes

Half-title verso with engraved illustration of St. Peter above Bishop's coat of arms

One of the plates is letterpress "Declaratio ichnographiae basilicae veteris S. Petri in Vaticano, sacroumque aedificiorum prope illam constructorum."

Subjects: Basilica di San Pietro in Vaticano; Church architecture; Church buildings; Church decoration and ornament; Basilicas -- Vatican City -- Designs and plans -- Early works to 1800; Sepulchral monuments -- Vatican City -- Early works to 1800; Church architecture -- Vatican City -- Early works to 1800; Church decoration and ornament -- Vatican City -- Early works to 1800; Basilicas; Sepulchral monuments; Vatican City; Vatican / San Pietro in Vaticano (Basilica)