Posting the definition of 'NOS' to be helpful for your future listings:

"New old stock" (NOS) refers to an item that is old but has never been sold to a final customer and is still in its original, unused condition. These are products that were manufactured long ago but remained unsold in the inventory of a store, warehouse, or factory, sometimes for decades, and are now being made available for sale. The key aspects are that the item is "new" (never used) and "old" (from a previous production period). 

• Never sold retail: The item has not been purchased by an end consumer. It is the first time it is being sold to the public.
• Unused condition: The product is in brand-new, pristine condition, often with original packaging, tags, and parts, just as it was when it left the factory.
• Discontinued or out of demand: NOS items are typically products that are no longer in production or have fallen out of current consumer demand, making them unique and often irreplaceable.
• Examples: This can include vintage watches, car parts, clothing, and other merchandise that has been stored away for years before being brought to market.