Ross I agree. Apparently it's named after a person as are theaters or hotels, The Hilton for example. It must mean something to Osvaldo, but I imagine a person would have to ask him or Cristina.
*This is just speculation but it might be short for something like The Meneghello Studio, or The Meneghello Tarot Shop, both hypothetical.
**It might be named after Luigi Meneghello
(February 16, 1922 – June 26, 2007). The Wikipedia article is brief but informative. He was a writer and teacher on aspects of the Italian Renaissance. He was also active in anti-fascism during WWII. He could represent something to Menegazzi and maybe he wanted his shop to reflect his Spirit. Again, purely specualtive.
***And there's Virgil Meneghello Dinčić
(1876-1944), a Croatian painter and art teacher.