https://bate.web.ox.ac.uk/tubas
Tubas, Euphoniums, Helicons and Sousaphones | The Bate Collection
Tubas, Euphoniums, Helicons and Sousaphones The Bate Collection contains a number of bass brass instruments of the 19th and 20th centuries. These include...
tubaseuphoniumssousaphonesbatecollection