In 1968, this item features a 'Professional Copy - Not For Sale' ink stamp on the front. There's a minor water stain along the bottom, adding a touch of vintage character.

This is a great collectible item. Just keep it in a dry and clean place to prevent further damage from moisture. When handling it, make sure your hands are clean to avoid staining. You can display it in a frame on your wall or keep it in a protective sleeve in your collection. Since it's a professional copy not for sale, it's more of a unique piece for your personal enjoyment.