Civil War 1863 - double block, USA

With this impressive double jack, the US Post continues its series on the American Civil War. The two stamps show the Battle of Gettysburg in Pennsylvania, which was a turning point in historical development, and the Mississippi fleet near Vicksburg on the Mississippi.
A wonderful issue, front block containing two postage stamps, on the back miniature sheet block with a total of 5 pairs of stamps. There is also an explanatory historical text.