This may be the copy, from the papers of the bookseller Prault, which belonged in 1850 to E. G. B. Rathery, according to his ‘Variétés littéraires’, Bulletin du bibliophile (Paris 1850), ix.880.
Bibliography
Bibliography:
Jeroom Vercruysse, Inventaire raisonné des manuscrits Voltairiens de la Bibliothèque royale Albert Ier, vol.2 (Turnhout, 1983) p.11.