This is an unusual subject. The guides at the Casa Loma house in Toronto would present these personalized photos to their tour at the end of their visit. This photo is of Marilynn Malach, whose autograph is attached to the bottom of the photo.
The description on the back states:
CASA LOMA is operated by The Kiwanis Club of West Toronto Inc.
Proceeds for Charitable Work.
This little souvenir of your visit to Casa Loma is presented to you by your guide.
–It is not known if this was a universal practice among the various guides, or if this practice continues to the present day.
The card dates from the 1960s.