Isaak Buravsky 伊萨克·伯拉夫斯基

Isaac Buravsky (1898–196?), also known as Isaak Bouravsky or Исаак Буравский, was a Soviet cellist, member of the Bolshoi Theatre Quartet from 1935 to 1968 (he replaced Sviatoslav Knushevitsky in the group).

From:https://www.discogs.com/artist/3809125-%D0%98%D1%81%D0%B0%D0%B0%D0%BA-%D0%91%D1%83%D1%80%D0%B0%D0%B2%D1%81%D0%BA%D0%B8%D0%B9