This is the SJ-200 KOA CUSTOM. The SJ-200 started with the Super Jumbo in 1938. It is a popular model with over 85 years of history as the king of Gibson flat-top guitars. With its large, wild American look, it has been used by famous top musicians such as Elvis Presley, George Harrison, Bob Dylan, and Kiyoshiro Imawano. Have spruce + maple bodies, but this model's side and back are made of very beautiful solid Hawaiian Koa wood, a carefully selected Koa wood material with beautiful flames that show off the grain depending on the angle you look at it.