Uncommon CDV of Major Robert Anderson "Hero of Fort Sumter"

Uncommon CDV of Major Robert Anderson "Hero of Fort Sumter" this cdv has a Boston Massachusetts back mark and period in inscription "Major Anderson".
 
Major Robert Anderson (June 14, 1805 – October 26, 1871) was a U.S. Army officer best known for his pivotal role at the start of the American Civil War, when he commanded Union forces at Fort Sumter in Charleston Harbor, South Carolina. A graduate of West Point (Class of 1825), Anderson served in the Black Hawk War, the Second Seminole War, and the Mexican-American War, where he was wounded at the Battle of Molino del Rey. Though a Southerner by birth—born in Kentucky—Anderson remained loyal to the Union during the secession crisis of 1860–61, a decision that placed him at the center of one of the most consequential moments in U.S. history.
In late 1860, Anderson was assigned to command U.S. forces in Charleston. As Southern states began seceding, tensions in the region escalated. Believing his position at Fort Moultrie was indefensible, Anderson quietly moved his garrison to Fort Sumter, a stronger but unfinished island fort in the harbor. This move angered Southern leaders and led directly to the Confederate bombardment of Fort Sumter on April 12, 1861, marking the official start of the Civil War. Anderson, heavily outgunned and cut off from resupply, surrendered the fort after 34 hours of shelling but became a national hero in the North for his bravery and restraint under fire.
After Fort Sumter, Anderson was promoted to brigadier general and tasked with raising Union troops in Kentucky. However, due to declining health, he was soon relieved of command and retired from active service in 1863. Despite his brief role in the war, his defense of Fort Sumter had immense symbolic importance, galvanizing support for the Union cause. In 1865, Anderson returned to Fort Sumter to raise the same U.S. flag he had lowered in 1861, symbolizing the Union’s victory. He died in 1871 and is buried at West Point.