Official Proof Sets contain proof coins of the year. Proof coins can be distinguished by their sharpness of detail, high wire edge, and extremely brilliant, mirror like surface. Proof sets are only made for collectors not for circulation. How a Proof coin is made is a very time consuming job. First the selected dies are inspected for perfection and are highly polished and cleaned. They are again wiped clean or polished after every 15 to 25 impressions and are replaced frequently to avoid imperfections from worn dies. Coinage blanks are polished and cleaned to assure high quality in striking. They are then hand fed into the coinage press one at a time, each blank receiving two or more blows from the dies to bring up sharp, high relief details. The coinage operation is done at slow speed with extra pressure. Finished proofs are individually inspected and are handled by gloves or tongs. They also receive a final inspection by packers before being sonically sealed in special plastic cases. As you can see these sets are special! They would be a nice addition to your coin collection.
All prices subject to change due to market conditions.
Software: Kryptronic eCommerce, Copyright 1999-2019 Kryptronic, Inc.
Exec Time: 0.308128 Seconds
Memory Usage: 8.534309 Megabytes