St. Gallen, Leobuchhandlung, (1938), lg in-8°, xv + 469 pp, sewn, original printed paper wrapper, handwritten dedication by the author. Spine discolored. Jean Mabillon, 1632 - 1707, Benedictine, famous historian, defender of monastic learning, founder of the science of diplomatics. Kapsner I no. 5214.