All posts by Sarah Miller

Director of Numismatics, New York

brockage coin error featured

Brockage Coin Value Guide – How Much is a Brockage Error Coin Worth?

A guide to collecting and finding the value of brockage error coins, where to get an appraisal, and how to sell your brockage coin.

fractional California gold coin

California Fractional Gold Half Dollar Part of Gold Rush History

California fractional gold coins from the gold rush era are highly sought-after by coin collectors. A round 1853 Arms of California type gold half dollar is expected to sell for around $10,000 despite being quite a bit smaller than a dime!

1855 type 2 gold proof dollar

1855 Type 2 Gold Proof Dollar Best of 7 Confirmed

One of only seven confirmed examples of an 1855 Type 2 gold proof coin is for sale at auction January 8-13, 2020. This rare coin has provenance dating back to 1864.

John Singer Sargent Letter to Monet for Sale

See the letter from John Singer Sargent to Claude Monet that will be auctioned in September 2019.

Filled Die Error Coins Value Guide – What’s Missing?

Have you ever found a coin in change that is missing part of the design or any of the lettering? Did you wonder what sort of error or variety this might be? Find the value

The Numismatic Design Duo: James Earle and Laura Gardin Fraser

While you may have seen some of their designs on coins in your collection, did you ever stop to consider the story of the artists who created the Buffalo Nickel, the Oregon Trail Half Dollar,

Rare 1943 Penny Sells for Six Figures: How To Tell If You Have One Too

Did you see the famous 1943 Bronze Discovery Cent, found by a teenager in the 1940s, in the news recently? Buy, Value or Appraise Your US Coins Bid or buy US coins for sale, value

What Makes a Modern Circulating Coin Valuable?

One frequently asked question here at Heritage Auctions is, “What makes a modern circulating coin valuable?” Buy, Value or Appraise Your US Coins Bid or buy US coins for sale, value your item, or request

Why is the GSA Hoarding Morgan Dollar Coins?

Over the years, various hoards of coins have captured the attention of the collecting community and the public alike. The idea of finding a large cache of old coins can be intriguing to many, but

Numismatic History: Native Americans on US Coins

What Native Americans Have Been on US Coins? The historical tribes that make up Native American culture have often been given a place of honor on many of the US Mint’s most popular and enduring