I have found this woman in a couple of fotoromanzi. She often plays the mother of the protagonist (relatively big roles) but she is still uncredited! Annoying! But I am sure there are some fotoromanzi where she is credited too.
This is from Sogno Mensile N. 93: "Storia d'amore" (from 1972):
And this is her in Il figlio di Aquila Nera
She must be a generica - I'm sure we'll find her in more films if we start looking for her