NOS! This unit appears to never have been ran. I cannot guarantee this 100% though. It is very clean with no marks on wheels. Honestly, it is getting harder to determine if these have ever been ran or not. Only bc they have been kept in such great condition! This one is also 28 years old but you’d never guess that! It will NOT been ran or tested prior to this listing. Therefore, you are purchasing ‘AS-IS.’ Thanks for understanding. If you have any questions or need additional clarification, please feel free to reach out! We appreciate you browsing Piggy Bank Bargains!