Musikalia are an Italian manufacture of all kinds of strummed chordophones working out of Sicily. There are currently more than 130 different models according the the website, including the standard fair, Guitars Mandolins, Banjos and the like, but the catalogue also encompasses other things like Cavaquinhos, Tiples, Tres's, Cuatros and of course Ukuleles, (including a Banjolele). 

The Factory was founded in 1964 by Alfio Leone, who prior to this was a luthier, (He certainly made Mandolins before this I have seen a 1958 example, he may have made other instruments)? He is usually referred to as Dr. (or in italian, Dott.) - I don't know why?