All of the numbers will appear in the Scott New Listings Update section of the June 21 Linn’s Stamp News.

Some countries were sensitive about the subject of the U.S. stamps that were affixed to mail from the United States.

Entries with a touch of humor or irony stand the best chance of winning the contest.

For the specialist, there are green and dull green shades with the same catalog values as the dark green stamp.

The pane of 20 Sun Science forever stamps pictures scientific features of Earth’s sun with 10 different designs.

Stamp orders can also be placed online and by mail using the form in the USA Philatelic catalog.

The bitterly fought lawsuit is in sculptor Robert S. Davidson's rearview mirror, and he is continuing to press his public art career forward.

Also this week, an unusual letter sheds light on prison mailing regulations, and understanding markings applied to letters deposited in package collection boxes.

The National Postal Museum will be the last of the Smithsonian Institution museums in Washington, D.C., to reopen.

Exhibitors may submit more than one exhibit, but multiple submissions should be independent of each other in content. The deadline to submit exhibits is July 15.

A bourse (sales area) of 75 national and international dealers will offer stamps, postal history and supplies.

George Meany was the notoriously hard-nosed president of the American Federation of Labor-Congress of Industrial Organizations.

The nondenominated (55¢) stamps show different paintings described as “architectural works,” each reflecting details of colorful buildings with bold contrasts.

Private entities have copied the format of the United States Champions of Liberty stamps issued from 1957 through 1961.

Smith, the immediate past president of the American Topical Association, has served on the association’s board since 2011.

A newly revealed image of the United States Go For Broke stamp is different from preliminary artwork of the stamp previously published.

After a year of virtual events, the first public U.S. first-day ceremony took place May 17 in Virginia.

Also this week, an overview of Stampboards.com, the chat board and forum run primarily by Australian collectors, and a word search featuring U.S. stamp subjects that begin with the letter N.

The images on the U.S. 1999 Extreme Sports stamps started as photographs of living people.

Unlike other coil stamps of the period, this issue is difficult to successfully fake by trimming the perforations.