Collectible coins, particularly those from the United States, include a range of denominations and designs. The Fifty Dollar Gold Buffalo coin is notable for its 24-karat gold composition and features the iconic Buffalo design originally created by James Earle Fraser. The Gold High Relief coins, such as those issued in 2013, are distinguished by their depth of detail and three-dimensional appearance, making them highly sought after by collectors. The "Unknown" designation may refer to the rarity or limited mintage of specific coin types, adding to their collectible value.

Item Denomination Series Year Mint
2013-- (Unknown) Gold Buffaloes & Gold High Reliefs $50 (Fifty Dollars) Gold Buffaloes & Gold High Reliefs 2013 Unknown