Eighteen copies of these _Letters of Indulgence_ are known, all bearing the printed date of 1454 or of 1455. The places where they were sold having been written on the document by the seller, we discover that they must have been sold over a large territory, for one was issued at Copenhagen, another at Nuremberg, and another at Cologne. The large number of copies preserved is evidence that many copies must have [p410] been printed. It is probable that Gutenberg was required to compose and print the form at three different times; but we do not know why he found it necessary to make a new face of text type for the second and third editions,[253] for it is very plain that the types of the first edition were not worn out. _The Appeal of Christianity against the Turks_, sometimes called the _Almanac of 1455_, is another small work attributed to Gutenberg. It is a little quarto of six printed leaves, in German verse, in the large type of the _Bible of 36 lines_. As it contains a calendar for the year 1455, it is supposed that it was printed at the close of 1454. Its typographical appearance is curious: the type was large, the page was narrow, and the compositor run the lines together as in prose, marking the beginning of every verse with a capital, and its ending by a fanciful arrangement ·:· of four full points. It is the first typographic work in German, and the first work in that language which can be attributed to Gutenberg. But one copy of this book is known. Gutenberg’s fame as a great printer is more justly based on his two editions in folio of the _Holy Bible_ in Latin. The breadth of his mind, and his faith in the comprehensiveness of his invention, are more fully set forth by his selection of a book of so formidable a nature. There was an admirable propriety in his determination that his new art should be fairly introduced to the reading world by the book known [p411] throughout Christendom as _The Book_. These two editions of the _Bible_ are most clearly defined by the specification of the number of lines to the page in the columns of each book: one is the _Bible of 42 lines_,[254] in types of Paragon body, usually bound in two volumes; the other is the _Bible of 36 lines_,[255] in types of Double-pica body, usually bound in three volumes.