Fenton,
Very Cool find, especially the Eagles

As far as the 71-D if it looks like it has
the reflectivity of a proof (Which it does in the
photo) There is the distinct possibility that
you have a 1971-D Ike that was struck on a
proof planchet. there are known incidents
of proof planchets being mixed in with the
regular circulation planchets and being struck
with regular circulation production dies.
I have a few of them my self that are 1971-D
and even a couple that are 1972-D. They are very far and
few between to find them. I have no idea as far as a value
on them. But since the Eisenhower series is just at the very beginning
of hitting it's stride with collectors the proof planchet circulation
strikes do not leave my collection. For that matter I have not sold
any of my variety Ike's. I have even stopped spending beater ike's
and just store them because there are new variety discoveries
happening all the time. And about the time I spend or sell one
with my luck it would end up being a new variety specimen.
Just in the last couple of months I found the second known specimen's
of two new Ike varieties in the safe on the same day.
And with Rob Ezerman's New Eisenhower book coming out soon
I suspect things are going to pick up steam in the Ike world.
Terry