Hic liber femineo corio convestitus est

Small gilt-lettered red leather panel mounted on front paste-down endpaper, reading: Hic liber femineo corio convestitus est (“This book is bound in a woman’s skin”), inside a copy of Chirurgia è Graeco in Latinum conuersa (Paris, 1544), bound by Josse Schavye (1822-1905) Notice of Smithsonian Libraries's Catalog.
This book could be bound in human skin, according to this inscription (source)

An other book bound by the same binder (Josse Schavye) and also subsequently owned by the same collector (Belgian physician and bibliophile André Uytterhoeven (1799-1868)), had been bound by human skin, confirmed by peptide mass fingerprinting in 2015 : De humani corporis fabrica by Andreas Vesalius from Brown University.