Hmmm, I wonder if perhaps they might have some of the looted Nazi Artwork?
And I would love to see some of the stuff they have. Like the guidons of 8th ID and 2nd Bde again. I know they haven't seen the light of day since 1992.
Anything is possible, but I would really doubt it.
After WW II ended and the Monuments, Fine Arts, and Archives recovery people in full swing, there was a plan to borrow some of the looted Nazi art and display it in the United States.
While it was partially done with noble intentions, given that many of the nations to which the art belonged no longer had a pot to piss in, or a place to store it, and many of the individual collectors were dead, the US saw it as a means of protecting and conserving the most important masterpieces while at the same time introducing the American public to them.
The backblast from that plan was pretty dramatic, not just in Europe, but also in the United States, and the plan was dropped.
While I have absolute no doubt that there is stolen/looted art in the United States, I doubt that there is any of it in the Army's collection.
Other than Hitler's watercolors, that is. And those were, frankly, legitimately confiscated as having been the personal property/creation of an enemy leader, so they don't qualify as having been looted.