Chymische Hochzeit : Christiani Rosencreütz, Anno 1459 : arcana publicata vilescunt : & gratiam prophanata amittunt : ergo: ne Margaritas objice porcis, seu Asino substerne rosas.
This is a Rosicrucian alchemical allegory printed in Regensburg in 1781, attributed to Christian Rosenkreuz and edited by Ernst Darmstaedter, aimed at readers of esoteric and occult texts. The two pictures are a small roundel with a skull, smoke and the letters R and C in the corners, and a tiny sketched reclining figure beneath a flowering branch, both in simple line work a designer could borrow for emblem or vignette ideas.

