Losnummer 31173. Nicholas I platinum 12 Roubles 1831-CПБ AU Details (Cleaned) PCGS, St. Petersburg mint, KM-C179, Fr-158, Bit-40 (R2). Mintage: 1,463. One of the most sought-after series in all of Russian numismatics, not only due to its absolute rarity, but the intrigue associated with the first widespread use of platinum in circulating coinage. While other world entities experimented with this curious by-product, it wouldn't be until the early 19th century where its application as a store of value would be discovered. Here we have the largest denomination in the series and certainly one of the most seldom-seen issues of Nicholas I. Though examination from an angle reveals fine hairlines across the surfaces, a conditional qualifier not uncommon for the type, this piece maintains the majority of its near-Mint State appeal and originality. Certainly most deserving of placement in advanced cabinet. HID05401242017 © 2022 Heritage Auctions | All Rights Reserved.