A mint never hinged (MNH) stamp is simply a stamp that is unused and has never had a hinge attached to it. Never hinged stamps are far more desirable than hinged stamps (of the same issue), because of their “fresher” state. Never hinged stamps are in the same shape as they were when originally bought at the Post Office. Older stamps, especially those from the 19th century, are difficult to find in never hinged condition.