In several states it is illegal to sell antlers, especially in states where they know bears are being poached for gallbladders. However as of the last I knew, in Iowa you can buy sell any body parts you want.
I know the Iowa DNR would like to see it made illegal, but I am not sure who is lobbying against it. I suppose it might be the the wild game breeder's associations where they harvest the horns to sell to Asian countries for aphrodisiacs.
Cool rack, I do not agree with selling it however I am curious if the paper indicated how much they expected to get??? I know some things like this bring BIG dollars.