Saxhorn alto en mi bémol. Culture : peut-être en français. Dimensions : 64,4 cm L. (25-3/8 po.) ; Diam. de bell : 19,1 cm (7-1/2 in.). Date : ca. 1850-60. Saxhorn alto
The Prince Regent's Band introduces the contrabass saxhorn in E flat - YouTube
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Musical instruments: the saxhorn developed by Adolphe Sax in the 19th century, three-valved brass instrument prototype of the saxhorn family, designed for band use Stock Illustration | Adobe Stock