Proof coins are distinguished from regular circulation coins by their distinctive appearance and specialized manufacturing process. They are essentially coins made specifically for collectors and showcase exceptional artistry and craftsmanship.
Here’s how to identify them:
Look for coins with a mirror-like background (fields) and frosted design elements (devices). This contrast, known as cameo contrast, is a key characteristic. Proof coins also exhibit exceptionally sharp details and crisp edges due to the way they are struck.
Proof coins are made using specially prepared, polished dies and planchets. They are struck multiple times under high pressure to achieve maximum detail and contrast. Unlike regular coins, proof coins are handled individually to protect their surfaces.
Proof coins are typically sold in special protective packaging to maintain their condition. They may also include a certificate of authenticity.
Proof coins usually have lower production numbers and higher prices than non-proof coins. Due to their reflective surfaces, they are also more prone to showing fingerprints and scratches.
In short, proof coins are collectible coins recognized by their mirror-like finish, frosted designs, and sharp details, produced through a specialized process involving polished dies, multiple strikes, and individual handling. They are often sold in protective packaging with a certificate of authenticity.
How to check if a coin is silver proof?
Great question! Silver is non-magnetic, so it will not be attracted to a magnet. Despite this, there is slight resistance when gently sliding a magnet down a straight and smooth silver bar. The resistance only happens with straight smooth items however. This resistance, coupled with non-attraction, indicate the presence of silver.
How do you tell if a quarter is a proof coin?
Proof coins have a mirror-like background with frosted design elements. The Mint uses a special process of manually feeding burnished coin blanks into presses with specially polished dies. Each coin is struck at least twice to bring out the details in the design.