Very hard to find Sigma by CF Martin & Co. TB-1 thin body OM/000 acoustic/electric with cutaway.  This was Sigma's flagship stage guitar and features a body shape roughly the same as a Martin 000 or OM with a body depth about 5/8" thinner.  Very comfortable sitting or standing, and sounds great unplugged or through an amp.

The '/N' means that while the instrument's pieces were made in Indonesia, it was assembled at Martin's factory in Nazareth, PA. Comes with a hard case.