Members will soon see a few updates on the Toccata Classics Pipeline, including Stöhr's Chamber Symphony in F major – the fifth volume in the series of releases of the composer's chamber music with Sinfonia Varsovia under Ian Hobson.
IMSLP has it (unsurprisingly) as his 'Kammersymphonie' in F major, published in 1921 and 36 minutes in length:
https://imslp.org/wiki/Kammersymphonie%2C_Op.32_(St%C3%B6hr%2C_Richard)