Thank you for viewing. I am decluttering as part of my end-of-life preparations. The items may have scratches, dents, etc. Players and collectors who appreciate the weight of the instrument and its unique characteristics, please consider purchasing. Regarding the Evolution: The "DBHW" engraving on this model indicates a double heavy-weight bell made of plain (yellow brass). The bell employs Courtois' unique "bell-over-bell" method, with a large sheath (outer bell) added to the outside of the main bell. This structure was intended to aid stability, resonance, projection, and depth of sound through weight and resonance. The bell is very heavy and produces a dense, powerful tone, but requires a significant amount of breath and player control to project the sound. This is an extremely rare model. That's all. This is a very rare instrument. Recommended for collectors and those who want to own a nostalgic instrument. I played it for a few months, but it didn't suit me. I would like to sell this instrument to someone who needs it. For shipping, it will be placed in the storage case shown in the photos and wrapped with bubble wrap. Thank you for your consideration.