Gemmae et sculpturae antiquae depictae ab Leonardo Augustino Senensi : addita earum enarratione
A 1685 Amsterdam edition of an illustrated catalogue of classical engraved gems and sculptures, compiled by Leonardo Agostini of Siena and published by Abraham Blooteling with notes by Jacobus Gronovius. Each plate shows a single oval profile portrait in a decorative frame, labelled with a name or 'Testa incognita' and an 'In cameo' or 'In niccolo' caption. A designer could take the restrained, evenly spaced oval medallion format, with its laurel and beaded borders, as a model for cameo-style labels and emblems.
