Westmalle, Excudebant Fratres Abbatiae Westmallensis Ordinis Cisterciensis in Belgio 1900 [8] + 544pp. (with one full colour plate out of text) + 155pp. (= supplement "Commune Sanctorum", missing one leaf: pp.111-112) + added: 4pp. "Supplementum pro Abbatia Postellensi", with Gregorian music notations, with some illustrations, printed in red and black, with ornamental capital letters, 37x26cm., text in Latin, most pages are still uncut, a rare publication in its original unbound gatherings in good condition, weight: 3.2 kg., R115465