Coin Toning after 6 Months of a 1902 Germany Friedrich Baden 5 Mark Silver Coin

This video was taken on 23rd Jun 2024, from which you can see the change of this coin from White-based to Red in 6 months. I will wait for some purple color coming out then will send it to NGC for grading. Nothing chemical add-on the coin.

[@NaniSami-d4t]

The most beautiful piece