(24.5 cm), xxi (3), 400 pp., 10 leaves of plates (pls.I-X), 5 text illustrations. Publisher’s blue cloth. - A landmark in bibliographical scholarship, demonstrating from an analysis of the paper evidence that the “Constance Missal” was printed at Basel between February and October 1473. “The Problem of the Missale Speciale takes its place on the small shelf of bibliographical masterpieces” (G. Thomas Tanselle, in The Library Quarterly, volume 39, April 1969, p.202). 2000 copies printed. ¶ Fine, unmarked copy.