Release date: October 2019 Peace On Earth is designed to help you document the real reason for the season. Includes 16 stamps on a 4×6 sheet. Made of photopolymer material in the US. Please note: Most stamps are only available 6-12 months after their initial release with the exception of some holiday, some staples and some travel themes. Any stamp set that includes ‘Last Call’ in the title means that it is the final run and will no longer be produced. The art is still available in the Digital Stamps section.