Colin Cook - Heart

In 1963, this item features a 'Professional Copy - Not For Sale' ink stamp on the front.

This item with the Colin Cook's Heart design and the special ink - stamp is more of a collectible. There's no specific use method like a regular product. When handling it, be gentle to avoid damaging the ink stamp. Store it in a dry and cool place to prevent the ink from fading. And remember, it's marked as a professional copy and not for sale, so keep it in a safe place for long - term collection.