J. R. Lafleur & Son
Music Publishers and Instrument Makers,
N° 15 GREEN STREET, LEICESTER SQUARE, W.C., LONDON

J. R. Lafleur and Son were founded in 1861 as musical instruments makers and publishers of music.

1862 – 1911 based at Green Street, Leicester Square, London

1912: 147 Wardour Street, London

1917: Lafleur and Son were bought-out by Boosey and Hawkes

At least until 1931: but still continued trading in their name.

Agent for French and Swiss musical boxes.
(Ord-Hume, Music Box, 1980, p. 312)