3 rubles Silver 900 - thickness: 3.3 mm, edge: 300 corrugations.
2 rubles Silver 925 - thickness: 2.4 mm, edge: 195 corrugations.
1 ruble Silver 925 - thickness: 2.2 mm, edge: 200 corrugations. 1 ruble Silver 900 - thickness: 2.4 mm, edge: 252 corrugations.