Vietnamese Mandolin

I bought this mandolin from an instrument builder in Hanoi. He showed me and my family around his shop for an hour and let me play many of his fine instruments. I ended up buying this oval hole mandolin and a traditional vietnamese instrument. For less than $100 bucks this mandolin sounds and plays great. The luthier's name is Do Viet Dung, here's his website: http://www.thanhcammusic.com/workshop.htm