Its rarity and historical significance led it to be auctioned for over $10 million in 2013, making it one of the most expensive coins ever sold. This $20 gold piece has a storied history.

Up until the 20th century, many coins were composed of basic metals like gold and silver — that is, until gold was banned from coinage by way of executive order in 1933, and silver was watered ...

Even beginners can do well by treating the hobby as a side gig instead of a get-rich-quick ... copper coins as long as you follow strict guidelines. With silver coins, the Oxford Gold Group ...

Often the most expensive and rare coins sold at auction come with the best backstory. For example, the 500,000 1933-dated Double Eagles ($20 denomination U.S. gold coins) that were struck ...