Green Succulent Global Forever Stamps, 2017 Sheet – International Mail

The global forever stamps can be used to mail a 1-ounce letter to any country where first-class international mail service is available, regardless of future rate changes.

The central stamp’s design is described as an existing photograph by Erika Kirkpatrick of the echeveria, a succulent native to the Americas often kept as an ornamental plant in the United States.

The round shape of these stamps, along with the inscription “Global,” was initially intended to distinguish it as postage for international letter mail rather than domestic letter mail.