Charitable donations of precious metals
I have accumulated a number of gold coins that I would like to donate to certain 501c3 officiall non-profit charities. I plan to put them in my will to be transferred from a safety deposit box.
Are they fully or mostly now protected from taxes as I think? Is there a best way to go about this in terms of preparations of details and management instructions? I can't help but think that it might help to do a sort of dry run of a few of the total while I am alive to make sure everything goes smoothly. Some non-profits would have no idea of what to do, so I imagine that I should help by providing sales or transfer details in advance.
I'm sure this must have come up before and I am thankful for any advice.