I found some lovely images of tickets and the like recently, and have played around with them, resizing, printing, and mounting them on card to use as ephemera in projects like this.
Here is one of two shadow cards I finished today. The other is on the Art In A Carton blog.
The woman in the photo was called Valeska. She lived in Thale, in Saxony Anhalt in Germany. I have an original photo-postcard dated 1919 that she sent to her mother, in Berlin.