There are some interesting Stewart banjos coming out of attics and closets on eBay now. My current favorite is a Universal Favorite Model 2 which has some issues but appears to be a solid instrument for around $500: click here for website

This is a sturdy enough instrument for steel strings.

There's also an early 4-string Stewart of interest, described as a "banjeaurine" which may be a prototype rather than a production model, from around the early 1900's. I'm still not sure of this one because the neck is so unusual but the pot is definitely a Stewart.

Charley Noble