This is 12 fret model from the 40s. Sometime in the 50s Martin switched to 14 frets clear of the body. This little uke is in very very nice condition, and has the classic sweet sound associated with Martin ukes.
This picture captures the color a bit more accurately. The strings are Ko`olau golds, which I installed because the previous owner did not have the instrument strung. He had received it for a father's day present when his one of his children found it at a garage sale for $50. I guess they're still out there. Needless to say, he got a lot more than $50 worth of guitar in trade from me.
That logo is backed by many years of building fine quality instruments. Ukulele production saved the Martin company at a critical juncture when guitar sales were low, in the early part of the 20th century. In those days Hawaiian music and ukuleles were top sellers.
No cracks, few chips, and all the hardware is original and works well.
This beauty is about as old as I am, and I think it's in better shape.