25 Dollars Terracotta Army

At 0.062 grams, this is among the smallest platinum bullion issues produced by any central bank — a format pioneered largely by the private minting sector and adopted by Liberia's issuing authority as part of a long-running series of collector-targeted fractional pieces. Liberia has no domestic platinum production and no historical connection to the metal, so these issues exist entirely as numismatic vehicles rather than instruments of monetary policy.