Britten has retrospectively (c. 1933-4) written '1923' at the top of the page. However, the handwriting and compositional style suggest an earlier date of circa 1922.
1 manuscript; 1 page [1v]
Pencil; 23.9 x 30 cm. Shares a volume with other sources. See Related Records. Paper manufacturer = Paxton
Archive
https://www.bpacatalogue.org/archive/BBM-untitled_piece_in_aflat_major_3-1-1