Belarus. 10 Roubles 1998 Adam Mickewicz with error in the year of death – 1854 instead of 1855. The RAREST silver coin of modern Belarus - only 94 pcs known! Described in the catalogue Parchimowicz 2014 as #201b, p.651 with the estimate 10000 euro. The rest of the mintage was melted after the die error was found. Silver (.925) 16.82g, in original capsule. With original blue plastic box and certificate (also with error in date). Very RARE