The sculptor Anton Grath (1881 - 1956) executed this large relief in 1921 (as a memorial plaque for the Schubert House in Vienna). Only 2 copies were cast - one is still mounted at the Schuberthaus Grünentorgasse 9). This copy remained in the possession of Anton Grath and comes from his estate. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution