Added the following to the 19th century timeline (2nd half):
1864—Paris, France: Two prints in the illustrated newspaper L’Illustration depict instruments by Adolphe Sax. The first, Audition des nouveaux instruments d’Adolphe Sax, shows a man demonstrating instruments on a stage. The second shows several instruments up close, including a “Nouveau trombone,” the six-valve instrument situated between the two drums (see facing image; public domain) (L’Illustration vol. XLIV, July 16, 1864, p. 48).