The auction listing dates this as 1901 as that is written on the back. However, to my eye, this looks like it was taken at the same time as the famous "my two sweethearts" photo at the Frederick Gutekunst studio in Philadelphia on January 3, 1907. (The Houdinis weren't even in the U.S. in 1901.)
Congrats to the winner of this beauty.
Thanks to Kevin Connolly at his CONJURING HISTORY Facebook group for the alert.