Oscar Wilde was 27 years of age when left England for America on board the S.S. Arizona. By the time he reached New York eight days later he was 26—this being the age he insisted upon in press interviews. 
A simple mistake for anyone to make who was awful at arithmetic or a victim to vanity; but it takes a declared genius to incorporate the error years later into his works, as we shall see.
It has long been assumed that all of the 1882 photographs of Oscar Wilde by Napoleon Sarony were taken during the same visit to his studio. Indeed, in all of Wilde studies there does not appear to be any record of an assertion to the contrary.
However, there is a convincing case to be made that the LAST FOUR photographs were taken at a later date.
When Oscar Wilde had this photograph taken by Napoleon Sarony in 1882, not only was he standing against the same wall that Sarah Bernhardt had stood against—but he was standing in EXACTLY the same spot.