Issued in 125 vols. in 143., Some vols. have imprint: Belwyn-Mills Publ. Corp., Melville, N.Y., Vol. numbering based on that of the 1940- ed. published by gos. Musikal'noe izd-vo, Moscow. Cf. Heyer, A. H. Historical sets, collected editions, and monuments of music, p. 308-309, and Charles, S. R. A handbook of music and music literature in sets and series., In Russian with English t.-p. and contents., and Includes index.