1865 Abraham Lincoln Smiling / Last Portrait From Life ??

[Eagleeye1965]

Ok guys here we go again..I have another interesting piece for us to enjoy and hopefully discuss..I did try to research this piece a while back and what I recall is landing on some internet site where they discussed this portrait and another as well..this one at one time was said to be a last portrait of life ,then at sometime or another "they" discovered it was not...but time wise it was "oh so close"...
In 1865 the Secretary of the Navy Gideon Wells requested Mathew Wilson to paint a portrait of Lincoln and this is a very large and as far as I know thus far, especially due to its size,a very rare Lithograph of that actual painting
Does anyone know more about this discussion I am referring to and is this Abe's Last Portrait from Life?
He looks quite happy here..I am thinking perhaps due to the fact he just found out he had won the Civil War?
Also another question I have..why did the Sec of the Navy Gideon Wells request a Portrait and why from Mathew Wilson..did he personally know Wilson or what's the story with that??
Thank you everyone and I think this will get pretty darn interesting