1922-1925 Black Ruthenium & 24KT Gold Gilded Genuine AU Peace Silver $1 w/ Box. Here’s your opportunity to acquire an authentic BLACK RUTHENIUM EDITION 1922-1925 Original AU Peace Silver Dollar. The coin features a stunning Black Ruthenium coating, a rare platinum metal that boasts a striking dark finish and is 100 times more scarce than regular platinum. The Liberty and Eagle busts are 24K Gold plated for a stunning display of their finer details. Ruthenium is represented by the symbol Ru and has an atomic number of 44. As a transition metal, it belongs to the platinum group on the periodic table. Please note that dates and mint marks will be shipped randomly. Limited edition of 999. Each coin comes in acrylic capsule w/ COA and display box.