We have a vintage photograph marked on the bottom "Hirsch" with a Chicago address.  It measures about 6 3/4" x 4 1/4" (the cardboard) with the picture measuring about 4" x 5 3/4".  On the back it is marked in pencil / pen   "May 1907 The Casey Twins"  The picture has a few damages on it, I would consider it in fair condition.
I will ship internationally, please contact me with your country for a shipping quote.