Also popular this week were stories about the upcoming Ellsworth Kelly stamp event and stamp societies working together for presentations.

The American Philatelic Society recently posted job openings for chief content officer and director of expertizing.

Carmine stamps of the early 20th century can be found in a dozen shades. The most desirable are the carmine lake and lake shades.

The total single-stamp cost for collectors was $95.75 in 2018, compared to $95.88 in 2017 and $99.38 in 2016.

A postcard mailed from Austin, Texas, to Cairo, Egypt, on April 18, 1916, has markings that show it was refused for transmission as “prohibited by country of destination.” The mystery as to why may finally be solved.

The May 21 issue pays tribute to some 200 river segments that make up the Wild and Scenic Rivers System, according to the U.S. Postal Service.

You are invited to use your imagination to put words in the mouths of the birds on the stamps and tell me what you think they may be thinking or saying.

The Rocky Mountain Stamp Show, sponsored by the nonprofit Rocky Mountain Philatelic Exhibitions Inc., is celebrating its 70th anniversary this year.

Linn’s Stamp News learned recently that Leonard Sherman, the stamp collector who purchased a full pane of 50 of the original 4¢ Dag Hammarskjold invert errors at a New Jersey post office, died March 12 at age 95.

Also this week, 'Americana Philatelic News' and a look back at a time when regular postage stamps were prohibited for postage due.

A stamp clue on Final Jeopardy was Linn’s most clicked story this week.

A remarkable new United States triple-stamp error has surfaced 18 years after the stamps were issued.

The May 31 first-day ceremony for the set of 10 forever stamps commemorating artist Ellsworth Kelly will take place at the artist’s studio in Spencertown, N.Y.

U.S. Stamp Notes columnist John M. Hotchner shares his collection of covers for mom and dad.

A painting of a male harlequin duck by New York artist Nicole Jeon has been selected to illustrate the 2019 junior duck stamp.

Collectors interested in exhibiting at the show in Midwest City, Okla., can contact chairman Ralph DeBoard; completed entry forms must be received by May 10.

USPS postcard offers tips to keep letter carriers safe.

Ropex will feature a 15-dealer bourse (sales area), and the USPS will be on hand to sell recent stamps and philatelic products.

Three new commemorative forever stamps, to be issued May 10, celebrate the massive project that made it possible to transport people and goods from one coast to another entirely by rail.

The Post Office Murals stamp ceremony recap was our most-read story this week.