The 13¢ Benjamin Harrison was the first stamp of that value to be issued by the United States.

Convincing counterfeits of the $7.95 Castillo de San Marcos Priority Mail stamp and the $26.35 Grand Island Ice Caves Priority Mail Express stamp turned up in August.

Also this week, a review of Linux and computer programs related to stamps, and a word search puzzle featuring U.S. stamps beginning with the letter P.

The August contest encouraged readers to think about parachuting in wartime.

The next Nojex show is scheduled for Oct. 14-16, 2022.

Each of us is likely to bring our own set of assumptions when answering the question.

The stamps will be issued in a pane of 20 on Sept. 30, with a first-day ceremony in the west Texas city of El Paso.

Also this week, tips for collecting the U.S. Emilio Sanchez commemorative forever stamps, and our anonymous reviewer looks over a worldwide mixture from a dealer in New York.

The four topics of the courses are “Deciding What to Collect,” “Building Your Collection,” “Studying and Caring for Your Collection” and “Beyond Stamps.”

Should you expertize space-fillers? It’s an individual decision that depends upon the collector and the quality of the stamp in question.

All of the numbers will appear in the Scott New Listings Update section of the Sept. 20 Linn’s Stamp News.

For each winner, the prize will be a 13-week subscription to Linn’s.

The nondenominated (58¢) Message Monsters stamps will be issued in a pane of 20 on Sept. 24.

Two countries, Liberia and the Philippines, modeled airmail designs principally used on aerograms on the U.S. DC-4 Skymaster airmail stamp design.

Journal editors and authors are encouraged to submit entries for the literature exhibition no later than Dec. 1.

Also this week, discovering important philatelic artifacts connected to a nondescript U.S. first-day cover, and the story behind the portrait on the Slania joint-issue souvenir sheets unveiled at Great American Stamp Show.

“Starting with the Mid-Atlantic Lighthouses stamps, customers should find it easier to acquire the stamp product they are seeking,” a USPS spokeswoman said.

The hunting theme requirement was first applied for the 2018 federal duck stamp art contest.

Three anonymous judges representing collectors, dealers and artists judge each category, then choose the best of the best for the top cachet honor.

Joint-issue Faroe Islands, Greenland and Denmark stamp souvenir sheets honoring engraver Czeslaw Slania were dedicated at the show.