Ring the Helmet of horror
In ancient Nordic culture, there was a lot of sacred symbols, but the Helmet of Horror, which also has a second widely known title's called the aegishjalmur (some sources often referred to the other alternative writing — Egisheim) has always been in a special account. The power of this Scandinavian talisman is so great that even today it remains a "tidbit" for all who are interested in runic symbols.
How to keep
Clean the darkened silver can be diluted with baking soda water to a state of "mush". And RUB with a soft cloth.