Helsinki, Suomalais-Ugrilainen Seura 1937 lxi + 378pp. (of which 364pp. with music scores for chant), 25cm., text in German, in the series "Suomalais-Ugrilaisen seuran toimituksia. Mémoires de la société finno-ougrienne" volume LXXIII (73), 3 stamps, pages still uncut, text and interior clean and bright, good condition, M98443