Brazilian rosewood, in absolutely superb condition. This is a large guitar for those days, and is quite rare - you see mostly 0's and smaller. The absence of back binding and a herringbone rosette determine it to be a model 18; mahogany on style 18s didn't come in until a couple years later. The serial number tells us that this is the 40th guitar made in the year, with a total of only 398. We have done a full set-up, including a neck reset and frets; it plays like a dream and takes light gauge steel strings with aplomb.