From http://tedcrocker.com/rustynail.html
" The Back Porch'r is a custom Rusty Nail created for Sidewalk Bob Harrison. Bobert wanted a five string model with a single volume control. The body is mahogany and purpleheart, with purpleheart covers and tulipwood knob. "

Blue Clicky for you, Bobert. My, that's a purty guitar!