The present book of the Psalms, decorated with beautiful capitals and sufficiently marked out with rubrics, has been thus fashioned by an ingenious invention of printing and stamping without any ploughing of a pen, And to the worship of God has been diligently brought to completion by Johann Fust, a citizen of Mainz, and Peter Schoeffer of Gernsheim, in the year of the Lord, 1457, on the vigil of the Assumption. Thus in the Psalter of 1457 we have the first example of a book informing us when and by whom it was manufactured; it also illustrates in a very remarkable way the determination of the new partners to produce a volume which should fully rival the best shop-made manuscripts. The effort to print rubrics had already been made in the Forty-two Line Bible, but the red printing was abandoned in that instance as too troublesome. Now it was revived with complete success, and with the printed rubrics came also printed capitals or initial letters in two colours, red and blue, and several different sizes. A good discussion of the manner in which these were printed will be found in the _Catalogue of the Manuscripts and Printed Books exhibited at the Historical Music Loan Exhibition_ (1886) by Mr. W. H. J. Weale. In an article in the first volume of _Bibliographica_ Mr. Russell Martineau showed that part of the edition was printed twice. When Mr. Martineau wrote nine copies were known, all on vellum, viz. (i) five of an issue of 143 leaves containing the Psalms and Canticles only, these being at the British Museum, Royal Library Windsor, John Rylands Library, Bibliotheque Nationale Paris, and Royal Library Darmstadt; (ii) four of an issue of 175 leaves, containing also the Vigils of the Dead, these being at the Bibliotheque Nationale Paris, University Library Berlin, Royal Library Dresden, and Imperial Library Vienna. To these must now be added a copy of the larger issue, wanting five leaves, presented in 1465 by Rene d'Anjou to the Franciscans of La Baumette-les-Angiers and now in the municipal library at Angers. The distribution of the Psalms in this 1457 edition is that of the general "Roman use," but blank spaces were left for the insertion of the characteristic differences of the use of any particular diocese.