The brass is bemt manualy and mechanicly to form the shape. The main tube with the bell is made seperatly. They fill it with a soapy solution and freeze it. One the solution is frozen, the can bend the metel without it buckeling. The bell shape is formed by bending the metel, and later hammering it, but to make the shape round, they spin the whole thing (when it is still unbent) and smooth it out. The other tubes and valves are attached to the bent main tube later.
Best estimates put this trumpet as being manufactured after 1980.
Best estimates put this trumpet as being manufactured after 1998.
Best estimates put this trumpet as being manufactured around 1953.
1999
Best estimates put this trumpet as being manufactured around 1975-1980.
Best estimates put this trumpet as being manufactured after 1984.
Best estimates put this trumpet as being manufactured after 1980.
Best estimates put this trumpet as being manufactured after 1983.
Best estimates put this trumpet as being manufactured around 1951-1952.
Best estimates put this trumpet as being manufactured around 1952-1953.
Best estimates put this trumpet as being manufactured around 1951-1952.
Best estimates put this trumpet as being manufactured around 1950-1951.
Best estimates put this trumpet as being manufactured around 1956-1957.
Best estimates put this trumpet as being manufactured around 1947-1948.
Best estimates put this trumpet as being manufactured around 1925-1926.
Best estimates put this trumpet as being manufactured after 1998.
1957