Manuscript Transmitted to the Serene Duke of Holstein Explaining the Obscure Matters of Alchemists

4^o

Alch. 25.

A small rectangular fragment of printed text and horizontal ruling, likely from a different source, is pasted or visible beneath the surface in the center-left.
House

R

The names "Med.", "Alchem.", and "Faber" likely refer to the classification of the volume: Medicine, Alchemy, and the author Pierre-Jean Fabre (Petrus Johannes Faber).