As I am surprised that bigchuck has not already mentioned, he being a proud father of one, Martin has just gotten the 000-15S into stores, after claiming it was released more than a year ago.
The -15 models are all-mohogany bodies (including top) with a satin finish. The 000-15S is a 000-size (duhh!), twelve frets to the body, round shouldered, wide neck, slotted headstock, model that would is, visually, a very good imitation of a much older guitar.
And it has a tremendous sound, and the street price new is $700+. For an all-solid-wood Martin.