The image shows an official letter from the War Department dated September 28, 1889, addressed to Major Isaac Cusac regarding his recognition as Major of the 21st Regiment Ohio Volunteers. The letter, written on aged paper, communicates the completion of his record, recognizing his service from February 29, 1864, following an act approved on June 3, 1884, and its amendments. For any pay due under his amended record, he is advised to contact the Second Auditor of the Treasury. The letter is signed by F.C. Ainsworth, Captain and Assistant Surgeon, U.S.A. The document reflects formal military administrative communication typical of the late 19th century.