A similar pattern to the OM, the 14 fret OOO has a deeper body front to back, lighter bracing and a 24.9" scale length to give this guitar a slinkier feel with great bottom-end.
Picture
John Fowler at Shoreline Music with a Mahogany/Engelmann 14 fret OOO.
John from Shoreline with a Rosewood/Engelmann 14 Fret OOO. 
Another Shoreline Northwood clip. 14 fret OOO with a redwood top.