Ho trovato questo documento in tedesco

http://www.saxophon-service.de/online/da9707x3.htm

dove si dice che era uno dei nomi dati agli strumenti prodotti in Germania dalla VEB (poi B&S)

la traduzione in inglese del secondo paragrafo č:

"After the Second World War and founding of the GDR the operation of independent craft businesses for political reasons has been systematically impeded. Part of the manufacturer stopped production one voluntarily or involuntarily. Until the early 70s, various manufacturers in the Combine were "VEB blowing and signal instruments" (B ​​& S) combined. The time under the name "World Sound", "B & S", "Sonora", "Band Master 'and' Buddy Henderson" to market coming Saxophone no longer belonged to the top class. After the fall of the "VEB blowing and signal instruments" was dissolved, the production areas have been unbundled. successor of VEB for the area was Saxophonbau 1990"