In the 1920s and ’30s, clerks at The Times collected stamps from overseas mail. The postage tells of a fluid world history.

Available in panes of 20, the stamps — which never expire — will always retain a value equal to the current First-Class Mail 1-ounce price. “Feeling incredibly proud and honored to have my ...

The stamp will be available for purchase in panes of 20. As it is a Forever stamp, it will always be equal in value to the current First-Class Mail 1-ounce price, according to the USPS.