Lucienne Bréval can be heard on a number of Mapleson Cylinders

http://www.mediafire.com/?ymmaoxgkzz0

As the LP notes, this is not high-fidelity sound. This is IRCC LP7006, issued in 1955, containing transfers of a number of Mapleson Cylinders, recorded live from the stage of the Metropolitan Opera House from 1901 to 1903.

Bréval appears on the following tracks:

14. Meyerbeer – L’Africaine – Duet, Act 4 (Three fragments)
Lucienne Bréval, soprano; Jean de Reszke, tenor. Philippe Flon, conductor
15/3/1901