I just added the below image and caption to the Trombone History Timeline (19th century: 1826-1850) and to the collection of rear-facing trombone images, Backward Advances: Rear-Facing Trombones throughout History.
c. 1828—Paris, France: Frédéric Bouchot’s La Grisette abandonée, No. 2, second in a series of seven lithographs, includes a rear facing trombone in the music ensemble (see below image; public domain).
![](http://cdn-617fc9a2c1ac186784d32f45.closte.com/wp-content/uploads/2023/10/Bouchot-rear-facing-799x1024.jpg)