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

Collecting stamps can be as easy as pulling a stamp off an envelope delivered by mail or as complicated as studying ...

Gross got hold of the 1868 stamp that has a picture of Benjamin Franklin on the front, via a trade with the 11-year-old ... collecting, or philately, as alternative investments that accrue value ...