From Dr. Montessori's Own Handbook (the link is to the free edition on Gutenburg.org) - a great historical piece, NOT where I would recommend anyone *start* their Montessori reading, but for historical value, this book and The Montessori Method are interesting.
Scroll down the section entitled:
Exercises for the Writing of Alphabetical Signs
For the section on the cursive letters used at the time. (the method/experience itself was tweaked over the years to respond the needs of the universal child - and greatly simplified).
So the children ONLY learned cursive. Yet they could read this: