(Williamson of Eton, Vincent — Binding) — Aristotle

Folio (10 x 6 1/2 in.; 255 x 165 mm). Incomplete copy of Aristotle's Organum (Frankfurt, 1597), comprising pages 209–895. Early seventeenth-century English binding attributed to Vincent Williamson, binder of Eton College, brown calf, gilt fillets framing a gilt-stamp tree with a broken branch with  inscription "Noli Altum Sapere" (similar to Robert Estienne's printer device), gilt ornament in corners, gilt book-stamp "Charles Somersett" on top of front panel, with gilt motto "Mutare vel: Timere Sperno" on top of back panel; extremities rubbed, endpapers renewed, manuscript in Latin on recto of last blank (bound upside down). Probably a rembôitage. 

Charles Somersett, Marquess of Worcester (book-stamp on first panel). acquisition: Seven Gables

Interesting example of sevnteenth-century stamped-in-gold English binding.