Mathew B. Brady established a photography studio in Washington, D.C. Along with chronicling the Civil War, Brady and his photographers also captured images of the nation's leaders, including Abraham Lincoln.

Robert A. Siegel Auction Galleries has developed a terrific new online reference site devoted to the Inverted Jenny: the rare 1918 24¢ carmine and blue airmail error stamp that shows the Curtiss Jenny airplane in the central vignette flying upside down.

The distinguished career of William H. Seward included service in the U.S. Senate and as U.S. secretary of state, where he negotiated the purchase of Alaska in 1867.

The 1853 Gadsden Purchase, which obtained land from Mexico, is named for Ambassador James Gadsden, who successfully negotiated the agreement.

The sale is part of an extraordinary six-day run of auctions by five firms in conjunction with World Stamp Show-NY 2016.

As part of its seven-day series of new stamp issues for World Stamp Show-NY 2016, the United States Postal Service is reaching back to the 19th century to recreate six stamps in a set it is calling Classics Forever.

A set of 10 Colorful Celebrations stamps will be sold in a double-sided pane of 20 that the Postal Service refers to as a booklet.

Sixteen national parks from across the United States are featured in a new stamp pane being issued June 2. A first-day ceremony for the set will take place at 11 a.m. during World Stamp Show-NY 2016 at the Javits Center in New York City.

A talented musician who died far too young, Ritchie Valens has been immortalized on film, and honored on postage stamps celebrating him as a singer and songwriter.

The United States Postal Service has plans to issue two different stamp sets on May 31 showing subjects that are out of this world.

The United States Federal Duck Stamp Art Exhibit Tour will take up residence at World Stamp Show-NY 2016 from May 28 to June 4.

Advocacy is a facet of the American character that is reflected in philately. Agree or disagree — you can come up with your own label to state your case.

Special delivery service began in the United States in 1885, and immediately became a popular means of moving urgent mail.

Although plentiful in the grade of fine-very fine and in unused hinged condition, this joint-line pair is surprisingly difficult to find in the grade of very fine and in mint never-hinged condition with fresh gum and without defects.

Lincoln Ellsworth, born in Chicago, Ill., on May 12, 1880, was the first explorer to cross over both the North Pole and South Pole.

Journalist Harriet Quimby became the first American woman to earn a pilot's license. She also became the first woman to pilot an airplane across the English Channel.

Born May 10, 1888, in Vienna, Max Steiner became one of Hollywood's most prolific composers. He scored some of the greatest films of all time, including Gone With the Wind and Casablanca.

The Scottish-born creator of Peter Pan, J.M. Barrie, adapted his character from an original play to a novel. He donated the rights to the character to a hospital charity in 1929.

With just 29 recorded songs, Robert Johnson altered the direction of blues music in the 1930s, and he continues to influence some of today's legendary rock and blues musicians.

The planned May 29 auction of the William H. Gross collection of outstanding Switzerland rarities was pre-empted by a private sale.