I've had my Mountain since 1975ish. Can't remember the name of the store in Hawaii that I bought it from. The model # is either a 400 or 500 since the number before the two zeros didn't print on the wood for some reason. Probably a poor stamp contact. My sister had a small bodied Martin and I must say that I always preferred her guitar over mine. That Martin sound was so full even for such a small body. I still love my Mountain and I've kept it in great shape.