When it comes to steel-bodied resonator guitars, the original National Triolian is an icon. This particular 1930's example is a very fine guitar.
Produced from 1928 to 1941, the Triolian was built with a wood body for its first two years of production before the switch to steel in 1929. That switch made all the difference; what resulted was a unique, brighter sound and a durable body less vulnerable to climate change, one that produced a gorgeous patina with playing wear.
The guitar has been refinished in chrome some years ago and had a headstock "faceplate" added for decorative purposes.