Inscribed on verso, in pen and brown ink, "Briarous(?) / Trimbous. / pallas. / Mars. N.n / Niobis / Saul / Aragnas / Rebous"; at upper right, in black chalk, "P/107".
As Marcello Calogero has noted, the inscriptions on the verso name the mythological and biblical figures from Dante meets in Canto XII of the Purgatory: the Giant Breareo, Apollo (Timbreo), Athena (Pallas), Mars, the giant Nembrod, Niobe, Saul, Arachne, and Roboam.
Prayer, Carlo, 1826-1900, former owner.
Murray, Charles Fairfax, 1849-1919, former owner.
Morgan, J. Pierpont (John Pierpont), 1837-1913, former owner.