[Pantheology, or Universal Theology.] Two volumes, folio, 859 (of 863) leaves, un-foliated and unsigned, lacking two blank leaves (32 & 190) in the first volume, and two blank leaves (441 & 863) in the second volume - else complete. (Blanks 1,33,102,146 present in volume one). Text printed in two columns, gothic letters throughout, large margins. Initials were added by hand, including a fully illuminated fourteen-line initial on leaf 34 in volume one, done in green with a red background, blue and yellow frame, white tracery, and large foliate extensions in the vertical margin; eighteen other large capitals (some with grotesque faces) done in pen work in red, blue and green; smaller initials added in red and blue, with initial strokes and paragraph marks in red. Contemporary German blind-tooled sheepskin over beveled wooden boards, corner and central brasses, four original catches, and one of four original clasps intact on both volumes. (three clasps, and all leather straps replaced; both volumes re-backed), parchment index tabs on the fore-edges of leaves. PROVENANCE: Monastery at Brixen in the Tyrol. Sixteenth inscription on initial blank; Eric Sexton 115, with his gold-tooled morocco bookplate and shelf label; his sale Christie's NY 8th April 1981 lot 111 sold for $9,900.00 Incunable edition of the oldest theological encyclopedia, and one of the largest books produced during the Middle Ages: an extraordinary example from the library of Eric Sexton. A close reprint of Koberger's 1474 edition, published the same year as the first edition of Johann Sensenchmidt and by his sometime partner Heinrich Kefer. The theological summa of Dominican Raniero Giodini of Pisa was organised alphabetically as a dictionary of important theological concepts. Written ca. 1331 and influenced by the works of Thomas Aquinas, the work became popular in the fifteenth century, when several editions were published, including the present by Koberger. * "The Pathologic by Rainerius de Pisa, the Dominican who died in 1351, must be one of the longest books ever composed in the Middle Ages. (Considering all the abbreviations, I calculate, at a conservative estimate, that this means that the Pantheologia contains something in the region of 1,350,000 words.) [...] After [the] massive productions [six editions in the incunabula period] (the size of which never struck terror into fifteenth-century printers") *Quoted from Notes on the bibliography of Rainerius de Pisis by Dennis E. Rhodes.