The National Bank of Belarus on December 22nd, 2014 puts into circulation new silver and copper-nickel commemorative coins “The UNESCO World Heritage. Mir Castle” of the "UNESCO World Heritage” series:

Silver coin – face value 20 rubles, purity 925, weight 33.62 g, diameter 38.61 mm, mintage 3000 pcs., quality proof;
CuNi coin -  face value 1 ruble, weight 15.5 g, diameter 33.00 mm, mintage 2000 pcs., quality proof-like;

Coins are round, the edge is reeded

Coins are minted at Lithuanian mint

Source of information: National Bank of the Republic of Belarus www.nbrb.by