A Copy of Ptolemy's Almagest is Probably the Earliest Dated Commercially Produced Manuscript Copy of a Secular Text Made in the Paris Book Trade

Bibliothèque nationale de France MS lat. 16200, a copy of Ptolemy's Almagest translated from Arabic into Latin by Gerard of Cremona, bears a colophon recording that it was copied from an exemplar at the Abbey of Saint-Victor, and finished in December 2013. This manuscript, created at the beginning of commercial book production in Paris, is the earliest, or one of the earliest recognizably professionally-made secular manuscripts from Paris.

David Juste, ‘MS Paris, Bibliothèque nationale de France, lat. 16200’ (update: 07.05.2019), Ptolemaeus Arabus et Latinus. Manuscripts,  http://ptolemaeus.badw.de/ms/141, suggests that the exemplar on which the above copy was based may be BnF MS lat. 14738, a 12th century copy. Juste indicates that Gerard of Cremona completed his translation between c. 1150 and 1187.