The purchase of a manuscript during the fourteenth century was attended with almost as many formalities and precautions as are to-day considered necessary for the transfer of a piece of real estate. The dealer making the sale was obliged to give to the purchaser guarantees to the effect, first, that he was himself the owner or the duly authorised representative of the owner of the work; and, secondly, that the text of this was complete and correct, and as security for these guarantees he pledged his goods, and sometimes even his person. As a single example of a transaction illustrating this practice, I quote a contract cited by Du Breuil . This bears date November, 1332, and sets forth that a certain Geoffrey de Saint Léger, a duly qualified clerc libraire, acknowledges and confesses that he has sold, ceded, and transferred to the noble gentleman Messire Gérard de Montagu, Avocat du Roi au Parlement (counsellor at the royal court), all right, title, and interest in a work entitled Speculum Historiale in consuetudines Parisienses, contained in four volumes bound in red leather. The consideration named is forty livres Parisian, the equivalent, according to the tables of de Wailly, of 1013 francs. The vendor pledges as security for the obligation under the contract all his worldly goods, together with his own person (tous et chacun de ses biens, et guarantie de son corps même), and the contract is attested before two notaries.
 Jacques Du Breuil, Le Théâtre des antiquités de Paris (Paris: Claude de la Tour, 1612), p. 608.
17 February 2015
George Haven Putnam, Books and Their Makers During the Middle Ages, Vol. I (New York: G.P. Putnam's Sons, 1896), p. 212: