Antler Euro Mount Preservation

How do you taxis preserve the antlers? Do you use a sealer on them?

Some do some don't. I personally don't use a sealer if it's kept inside out of the weather. To me the sealer makes them shine and doesn't look natural.
If your keeping it inside there shouldn't be any issues or loss of color.

As crosshare said. Nothing needed if they are to be kept indoors.