I Know I Cant Save It, But Cant I Do Something? 1800's Penny...

My bad :( At first glance it looked like a Large Cent , but your right ,It's an IHC . Sorry about that .

Just a suggestion. This may be an opportunity to experiment with the coin as you have nothing to lose. Before you use VerdiCare you should remove the organic material with soaks in acetone, rinse, and then soak in xylene and rinse. Both are organic solvents but they behave differently because acetone is polar and xylene is non-polar. Then soak it in VerdiCare and pick at it with a toothpick. You may see a slight improvement but don't expect much. It's a good way to learn about the various products and not risk ruining a valuable coin.

skip organic solvents, as there is nothing organic on the coin.

coin looks like metal detecting find.
you can experiment with it at your will,
nothing can lower its value,
as it already equals to zero.

even if you destroy the coin with your experiments,
you learn the lesson for the future.
so you win anyway.

if you (or anybody else) wish,
i could even mail handful of metal detecting coins,
19. century finds from central Europe (Austria, Hungary),
for any experiments.

I'd throw in the the cull box, and buy some more. They're not all that expensive.
Best of luck!

fiream and tocomabyt

that is question for coin owner, I would say.

anyway, I stand for what I wrote.

organic reactants in the soil don't produce organically removable products on the copper.

i hereby declare that I am willing to send you for free a handful of 19 century metal detecting copper coins from Europe.
let's assume European 19. century copper coins behave as same as 19. century copper US coins.

if you manage to remove anything away from them by acetone,
I in advance agree you are right.

if you do not wish to do the experiment with acetone,
I will send the coins to the first member interested to do the experiment.