|
|
| |
|
|
The 1983 U.S. Proof Coin set contains a proof Kennedy half dollar, Washington quarter, Roosevelt dime, Jefferson nickel and Lincoln one-cent coin produced by the San Francisco Assay Office. The coins have the 'S' mint mark.
The production of proof coins is a unique operation with special handling being given to both the dies and the blanks. Proof blanks are burnished with thousands of steel beads and cleaning chemicals to buff out imperfections and polish the surface.
|
|
 |
The polished blanks are then rinsed, dried and transferred to the press room where a final cleaning and inspection is given them by the coin operator before they are struck.
Proof dies are first sandblasted resulting in a frosted appearance and texture to the die's surface. The portrait is then covered with tape and the background is polished with several grades of diamond polish and buffed. When the tape is removed the frosted design against the polished background gives a beautiful two-toned effect to the die which is transferred to the coins when they are individually struck twice. Proof coins are sealed in a clear plastic package to protect their beauty.
These coins have never been handled or removed from the case. They are sealed in a clear, hard plastic case with charcoal-colored background, and all of that enclosed in the mint’s original decorated box. Condition is AS NEW. (6309)
Many people give these as gifts – here’s something memorable for someone you know who was born in 1983 or who’ll be celebrating a birthday in a year ending in ‘3’!
|
|
|
