Cerveny, E flat tuba, 4 rotary, ca.1892
Cerveny, B flat euphonium, 4 rotary, ca.1900
Cerveny, B flat euphonium, 4 rotary, ca.1900
Cerveny, EE flat tuba, 4 rotary, ca.1900
Cerveny, BB flat tuba, 4 rotary, ca.1910
Cerveny, F tuba, 4 rotary, ca. 1910
Cerveny, BB flat helicon, 4 rotary, ca.1910
Cerveny, recording, BB flat tuba, 4 rotary, ca.1930
Cerveny/Elaton, EE flat tuba, 4 rotary, ca.1950
Cerveny, BB flat helicon, 4 rotary, ca.1960
