This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Manual for noncommissioned officers and privates of cavalry of the Army of the United States. . To be also used by engineer companies mounted for cavalry instruction and training BHL. Manual for noncommissioned officers and privates of cavalry of the Army of the United States To be also used by engineer companies mounted for cavalry