"I guess the value is going to really fall on these now that the number known to exist has doubled. "
Not Really... If I am correct...
The one in France is a Miniature Version of the one in New York. I think it was used as a scale model to produce the one that was given to the USA.
Also there is one in Vegas I believe.. but its a cheap Knockoff one.. so grade it a G-VG. Unless PMG Grades it... then it's a GEM!