There were many advertisements during early 1900's promoting the realism of the talking machine.
In 1908 The Victor Talking Machine Company began an advertising campaign which directly asked the question: Can you really tell the difference between the actual performer and the Victor record, with "Which is which?" graphically positioned between an artist and a Victor machine.
Madame Melba, 1908
Enrico Caruso, 1908
Antonio Scotti, 1908
Marcella Sembrich, 1908
Geraldine Farrar, Colliers, 1908