The Black Hour Book. Manuscript M. 493 of the Pierpont Morgan Library New York. Facsimile and commentary. 2 volumes and 1 folder. 1 Bl., 129 pp., 3 Bl; 187 pp., 2 Bl. 17 x 12 cm. Black OSamtband with 10 gold embossed humps and clasp as well as gold cutting in the OLEin thruster; OSamt with gold embossed RSchild, together in OPlexiglasschreiber or OLEinenmappe. ==References====External links== One of 980 numbered copies (total edition: 1060). With scientific commentary with contributions by Bernard Bousmanne and William Voelkle. – Fresh copy. Decorative.