Fischer in looking over some old papers discovered a calendar of a folio size, and printed on one side only, for 1457. The letters, according to his description, resemble those of a Donatus, of which he has given a specimen in the third part of his Typographic Rarities, and he supposes that both the Donatus and the Calendar were printed by Gutemberg.[III-39] It is, however, certain that the Donatus which he ascribed to Gutemberg was printed by Peter Scheffer, and in all probability after Faust’s death; and from the similarity of the type it is likely that the Calendar was printed at the same office. Fischer, having observed that the large ornamental capitals of this Donatus were the same as those in the Psalter printed by Faust and Scheffer in 1457, was led most erroneously to conclude that the large ornamental letters of the Psalter, which were most likely of wood, had been cut by Gutemberg. The discovery of a Donatus with Peter Scheffer’s imprint has completely destroyed his conjectures, and invalidated the arguments advanced by him in favour of the Mazarine Bible being printed by Gutemberg alone. [Footnote III-39: Gotthelf Fischer, Notice du premier livre imprimé avec date. 4to. Mayence, An xi. Typographisch. Seltenheit. 6te. Lieferung, S. 25. 8vo. Nürnberg, 1804. When Fischer published his account of the Calendar, Aretin had not discovered the tract entitled “_Eyn Manung der Cristenheit widder die durken_.”] As Trithemius and the compiler of the Cologne Chronicle have mentioned a Bible as one of the first books printed by Gutemberg and Faust, it has been a fertile subject of discussion among bibliographers to ascertain the identical edition to which the honour was to be awarded. It seems, however, to be now generally admitted that the edition called the Mazarine[III-40] is the best entitled to that distinction. In 1789 Maugerard produced a copy of this edition to the Academy of Metz, containing memoranda which seem clearly to prove that it was printed at least as early as August 1456. As the partnership between Gutemberg and Faust was only dissolved in November 1455, it is almost impossible that such could have been printed by either of them separately in the space of eight months; and as there seems no reason to believe that any other typographical establishment existed at that period, it is most likely that this was the identical edition alluded to by Trithemius as having cost 4,000 florins before the partners, Gutemberg and Faust, had finished the third quaternion, or quire of four sheets.