Collectible coins, particularly those issued by the United States, include notable entries such as the Gold Buffaloes and Gold High Reliefs. The Gold Buffalo, first struck in 2006, features a design inspired by the iconic Indian Head nickel and is minted in 24-karat gold. The Gold High Relief coin, introduced in 2007 at the West Point Mint, showcases a deeper relief design and is also made of 24-karat gold, enhancing its aesthetic appeal and collectibility. Both types often attract numismatic enthusiasts and investors due to their historical significance and precious metal content.

Item Denomination Series Year Mint
2007-W (West Point) Gold Buffaloes & Gold High Reliefs $50 (Fifty Dollars) Gold Buffaloes & Gold High Reliefs 2007 West Point