The Lawson Fourier model is their version of a "large" or "Kruspe type" instrument.  Lawson horns, with their signature velvety sound quality, are excellent purchases and with proper maintenance last a very long time. The expert craftsmanship is apparent on the brand, and this double horn is no exception. This horn was played in the Atlanta Symphony. 

Compression reading is a perfect 0.1.

Comes with black detachable bell case