Francesco Verginelli is an Italian luthier making some beautiful ukuleles, guitars and other instruments under the brand FV Guitars. His instruments are played by a number of Italian ukulelists. Most notably Jontom of Youkulele.
You can find out more at his website FVGuitars.com.
On Video
Claudio Perini plays a tenor.
Jontom tests out a Kasha tenor.