Kinetophone (partially found early sound recordings; 1894-1912)
The Kinetophone, developed By Thomas Edison, was a combination of the Kinetoscope and the phonograph to create the first recordings with sound. Though many samples have been found, only two of them have the audio found and repaired, due to the rarity of the wax cylinders used to record the sound on. You can find the footage below.
Footage Without Sound [From 1894-1895]
One of them with sound found [From 1894-1895]
The other one with sound found [From 1912]