What is a discharge worth signed by Abraham Lincoln and signed by Edwin m Stanton and Ed Townsend?

[David]

This is a discharge naming corporal Horace Riker of the 161st co. E Ohio National Guard. executed in the City of Washington day of December in the year of our Lord one thousand eight hundred and sixty-four BY THE PRESIDENT Abraham Lincoln (on the far right) this document is also signed in the lower middle also in long hand by Edwin M Stanton Secretary of War (beneath his name in long hand) about four inches above the long hand signature is a printed signature of Abraham Lincoln . This document list where these men may have been including In the valley of the shenandoah,on the Peninsula, in the operations on th James River, around Petersburg and Richmond, in the Battle of Monocacy, and the Intrenchments of Washington etc. according to Horace Riker's diary he was mainly around Harpers Ferry, Mary's heights, Bolivar Heights Charleston Va. Fredrick Maryland. Sheperdstown,Sharpsburg , and Martinsville Va. He was on provost duty and worked fixing track for the B&O Railroad that had been torn up by Col. John Singleton Mosby, confederate raider. Also escorted wagons from Frederick maryland to Harpers Ferry and met George Custer and his Wolverine calvary on the road one afternoon.