LAFRERI, Antonio. - Panthei Fidelissime Dimensi Exterior et Interior…

The print features the Pantheon in Rome, broken away to show the interior. Complete title : " Panthei Fidelissime Dimensi Exterior et Interior pars ex antiquo romano suis omnibus numeris absoluta"; with measurements left and right sides of image. Probably engraved by Nicolas Beatrizet for Antonio Lafreri and part of the "Speculum Romanae Magnificentiae" (The Mirror of Roman Magnificence).
Second state with the Lafreri's imprint and date.

Published by Antonio Lafreri (French, Orgelet, Franche-Comte ca. 1512–1577 Rome).
"The Speculum Romanae Magnificentiae (The Mirror of Roman Magnificence) found its origin in the publishing endeavors of Antonio Salamanca and Antonio Lafreri. During their Roman publishing careers, the two foreign publishers - who worked together between 1553 and 1563 - initiated the production of prints recording artworks, architecture, and city views related to Antique and Modern Rome.

The prints could be bought individually by tourists and collectors but were also purchased in larger groups, often bound together in an album. In 1573, Lafreri commissioned a title page, where the title ‘Speculum Romanae Magnificentiae’ first appears. Lafreri envisioned an ideal arrangement of the prints in 7 different categories, but he never appears to have offered one standard, bound set of prints during his lifetime. 

Instead, clients composed their own selection from the corpus to be bound, or collected a group of prints over time. When Lafreri died, two-thirds of the existing copper plates went to the Duchetti family (Claudio and Stefano), while another third was distributed among several publishers.

The Duchetti appears to have standardized production, offering their clients a more or less uniform version of the Speculum. The popularity of the prints also inspired other publishers in Rome to make copies, however, and to add new prints to the corpus" (The Met, New York).