The Davolisint was made by an Italian company, Davoli Krundaal Musical SRL, established by Athos Davoli. To appreciate the Davolisint fully, you have to understand that 1972 was the year before the synthesizer industry really took off. The Minimoog, EMS VCS3 and the ARP 2600 were already available and the ARP Odyssey was just about to appear, but the first of the more affordable Rolands, Yamahas and Korgs were only to be unveiled a year later, as were the glut of '70s string synths and electronic pianos. In this immature market, every new synthesizer was an object of wonder and respect. Indeed, if Crumar's fabled Compacsynth never appeared in commercial form, the Davolisint was not only the first Davoli synth, but the first Italian synthesizer, and possibly the first from mainland Europe, predating the more famous Crumars, Siels, Ekos and Jens by many years, so it's little wonder that it created a degree of interest that seems quite implausible today.
The other thing to appreciate is that, in 1972, manufacturers were still experimenting with both the form and function of electronic keyboard instruments, balancing costs, flexibility and simplicity in innovative ways that were largely abandoned just a couple of years later. This means that the Davolisint had very little in common with the synths that preceded it, or those that were soon to follow.
Article: Sound On Sound - The Story Of the Davolisint
Download: Elektrostudio Davosynth (10 Instruments Pack)