NILES' WEEKLY REGISTER, Baltimore, April 8, 1820  Ten pages of this 16 page issue are taken up with the various correspondence between "Decatur and Barron" which: "...led to the unfortunate meeting  of the 22d of March." in which Stephen Decatur was killed in a duel with Barron.
Commodore James Barron challenged Decatur to a duel, related in part to comments Decatur had made over Barron's conduct in the Chesapeake-Leopard Affair of 1807. These ten pages include many letters signed in type by each dating from June, 1819 to February, 1820.
Sixteen pages, 6 by 9 1/4 inches, archival repair at the front page spine, nice condition.

Background: This specific April 8, 1820 issue of Niles’ Weekly Register (Vol. XVIII, No. 6) stands as an extraordinarily rare and historically significant artifact of early American journalism, dedicating an unprecedented ten of its sixteen pages to the original, verbatim correspondence between Commodore James Barron and Commodore Stephen Decatur. Niles’ Register, acclaimed for its precise documentary record of the era, captured the raw, tragic escalation of honor and personal animosity—arising from Decatur’s role in Barron’s 1807 Chesapeake-Leopard court-martial—spanning nine months of bitter letters from June 1819 to February 1820. Because Decatur was one of the early Republic’s greatest military heroes following his legendary exploits in the Barbary Wars and War of 1812, his death at just 41 years old in the March 22, 1820 duel sent shockwaves through the nation. Today, finding a complete, original 16-page issue preserving this entire transcript is exceptionally scarce on the antiquarian market; it serves as a primary source document that not only records the exact words that led to a national tragedy, but also marks a pivotal cultural turning point that galvanized public sentiment against the brutal tradition of dueling in the United States.

As noted in Wikipedia, this title: "...(was) one of the most widely-circulated magazines in the United States...Devoted primarily to politics...considered an important source for the history of the period."