This is the instruction manual for a National tape recorder, model RQ-2720. It is a valuable document that is now difficult to obtain. Please check the condition in the photos. *The main unit is not included. This is an auction for the instruction manual only. *Please purchase only if you understand the condition of this item, as it has been stored for a long time. This is also recommended for those who own a tape recorder from that time, or for collection and reference purposes.