This is a marvelous, unique instrument, in a couple different ways. One, it was a custom, made with a 1 ⅞" nut width, and two, it was retopped by Martin some time between 1939 and 1944, as determined by ex-Martin repair shop head and vintage Martin guru Dave Musselwhite. Thus it is typical deeply scalloped and lower shifted X braces , making it a unique OM tonally, since all lower shifted non-dreadnaughts are short-scale. This one is probably the only vintage OM with that characteristic, and then the wider neck makes it even more unique. When the top was replaced, a metal T-bar truss rod was added. There are a few professionally repaired top cracks, an overspray, Dave Musselwhite has dressed the bar frets, it has recent Waverly relic tuners and a period hard shell case.