Oscar Diaz
| Model | Bell | Slide | Gooseneck / Valve | Tuning Slide | Leadpipe |
|
R11Z
|
Yellow brass
|
Yellow brass
|
–
|
Yellow brass
|
Z |
|
R10
|
Nickel silver
|
Nickel silver
|
Yellow brass
|
Red brass
|
10N |
| R4F | Yellow brass |
Bronze
|
Hagmann/ Heavy cap
|
Red brass
|
41A |
| R9 |
Yellow brass
|
Bronze
|
Hagmann/ Heavy cap
|
Red brass | 9N |