Click here for Marian Anderson's 1941 recording of Georg Friedrich Händel's "He shall feed His flock," from the Messiah.
And here for a 1930 recording by Ezio Pinza of Wolfgang Amadeus Mozart's "Fin ch'han dal vino," from Don Giovanni.
Pasquale Amato made this recording of "Largo al factotum" (Il Barbiere di Siviglia, Giaocchino Rossini) in 1911. It's as clear as a bell, and almost as thrilling as this 1917 version by Riccardo Stracciari.