Thesaurus gemmarum antiquarum astriferarum : quae e compluribus dactyliothecis selectae aereis tabulis CC insculptae observationibus inlustrantur : adiectis parergis LX, Atlante Farnesiano prolegomenis, diatribis III, dissertationibus XV et indicibus
A 1751 Florentine catalogue of antique astrological gems, compiled by Passeri, Gori, Zocchi and Franceschini from several cabinets and engraved on copper plates for antiquarians and scholars of classical art. Each plate is framed with a title banner and a caption naming the gem's source collection, showing a single figure or emblem within an oval or round medallion set on hatched ground. A designer might take the strict, symmetrical framing and the hatched backgrounds as a model for labelled emblem plates, with the astral motifs (stars, crescent moon) as ornament.
