This is the first model name that I have been able to verify, and its manufacture lasts for a VERY long time. These may also be the last professional model horns carrying the Evette-Schaeffer name. Most of the E&S horns after this model are intermediate quality.

This model had additional keywork to make playing a bit easier. This design borrows from the Holton "Rudy Wiedoeft" models and is expanded upon in the Leblanc horns.

The original ad, below, has a description of what each of the alternate keys was for and how to use them. It's also interesting to look at the prices for these horns.