The alphabet is attributed to Lampridio Giovanardi (1811-1878), an Italian inventor and artist. He was known for his crudely made engravings with optical illusions and tables with decoration, made of various materials, such as metal, gold and wood. Circa 25 engravings by Giovanardi are known today.
We could find examples of the alphabet in the collections of Princeton and Yale Universities.
References: OCLC 1050153867.