Minting began with 3-ruble coins, and 6-ruble and 12-ruble coins were added in 1829 and 1830, respectively. 1,371,691 3-ruble coins were minted, along with 14,847 6-ruble and 3,474 12-ruble coins. The first coin was sent to the prominent German scientist Alexander von Humboldt, who was previously asked to evaluate the use of platinum as a currency and confirm its price relative to silver. After his death, the emperor Alexander II bought that coin, and in 1859 it was returned to Russia and later became an exhibit of the Hermitage Museum in Saint Petersburg.