- Stephen Weston
A late development of the upright Serpent, invented about 1850 by Heinrich Joseph Haseneier (1798–1890) of Koblenz. It is made of wood, with a brass bell and crook and ten large keys on rod axles, the first two keys standing open. It is about 130 cm tall and resembles Streitwolf’s chromatic bass-horn. At least two examples survive (in ...