The Russian bass horn, also known as the basson russe, was developed in the late 18th century to meet the demands of military and ceremonial music in Europe, particularly within the Russian and Prussian contexts. Designed as a practical and acoustic improvement over the serpent, the instrument featured a conical bore, keyed fingering system, and a unique visual design—often with a dragon-shaped bell. Its robust tone and improved playability made it ideal for outdoor use in military bands. Although it declined in use by the mid-19th century due to the emergence of valved brass instruments, the Russian bass horn played a key transitional role in the evolution of low brass instruments. This article explores the historical, musical, and symbolic motivations behind its invention, emphasizing its cultural significance and legacy in wind instrument development.