I was lucky enough to acquire recently a beautiful manuscript, being Samuel David Luzzatto's work on Hebrew Grammar, titled Grammatica ragionata della lingua ebraica, del Professore S. D. Luzzatto.
The manuscript appears to be one used by one of his students or perhaps the copy that was used for it's publication, which appeared in the year 1853 under the title Grammatica della Lingua ebraica, by Samuel David Luzzatto. The handwriting is beautiful and very readable, and an index appears at the end as well. The text has many variations from the printed text, I hope to fine the manuscript a home where it will be analyzed and compared to the printed edition.
Many Thanks to Shimon Steinmetz. for his assistance in researching the manuscript.