Federico Zeri was a benefactor of the University of Bologna. The original piece of work (photograph) was included in his massive collection which was donated to the university.
La Compagnia Rotografica was the company who is credited with producing this piece, along with many other images of works of art, nudes, etc.
Below is a picture of an advertisement card for the company. Unless you can find the original source of your picture, dating/value is merely a ?? Have you removed the backing to see if there is any information hidden from view?
