"Natural Horn And Tone Grasshopper Couesnon Monopoly Ascending Descending"
Certain instrument makers like Raoux and Millerau invented the locust horn. It is a horn with which one could play either as a natural horn or with pistons. The names are numerous: piston horn, French horn, natural horn, single horn, invention horn, solo horn, grasshopper horn designate the same type of instrument with singularities related to the history and the evolutions of the 'instrument. Courtois nephew Ainé, Raoux Auguste, Charles Kretzschmann, Halary, Guichard, Protin, Tabard in Lyon, Gambaro, Piatet, Labbaye participated in the evolution towards the piston horn as we know it today.