Grading Mint State U.S. Coins Flashcards
Who is credited for striking the first coins nearly 2,700 years ago?
kings of Lydia
Coin Grading
In early catalogs how were coins described?
Who was the first to develop a set of written stands for grading coins?
William Sheldon
Sheldon Scale for Condition
What can overhead lighting hide on a coin with many sources of lighting?
What’s the distance to hold a coin to it light source.
Technical grading standard was established in what publication?
What does technical grading not include in the final grade?
What an important aspect of Technical Grading?
What does market grading include for final grade?
Early ANA market grading
Luster
Surface Condition
Eye Appeal
Strike
Four factor for market grading
Whats the most factor influencing a coin’s grade?
Luster
Luster
When speaking of luster, generally we are referring to fine lines on the surface of the coin. As the die used to produce a coin becomes excessively worn, the small lines grow into strong, major lines that reflect less light, resulting in less lustrous coins.
Flow lines are most nearly at what angle?
90 degree angle
Light source creates the hourglass shape call what?
Axial lighting
The light source on a coin are known as what and creates what when moving the coin?
Four Categories of Luster
Frosty Luster
Satin Luster
Satin Luster example
Prooflike
The coin’s finish is similar to that of a Proof coins.
The cause of Prooflike coins
Determining Prooflike and Deep mirror prooflike
Determining Prooflike and Deep mirror prooflike example
What mint is it comment to see prooflike coins in silver dollars?
Semi-prooflike coins
What coins exhibit die rust for Morgan dollars?
1883 Philadelphia Dollar
What the first factor that affects luster?
Die rust
What second factor affects luster?
The state of the dies due to die erosion.
Die erosion
Die erosion example
Third Factor that affect luster.
What is the four defect that will affect luster?
What is the fifth was luster can be affected?
Die polish
Other was to extend the life of a die other than die polish?
After luster what is the next most important consideration in grading Mint State coins?
Contact marks
When judging contact marks, what three things you should keep in mind?
Prime Focal area
Most people are drawn toward the portrait and the area the portrait is looking at.
Severity
How deep, damaging or distracting the marks appear.
The surface of the coin is considered what?
Textured, and if that texture is removed or scraped ,it can be quite distracting.
Quantity
Judging how many contact marks, don’t just look
at the prime focal area.
What three sides of the coin are there?
Obverse, reverse and edge
Strike
Lake-like Effect
Where are coins weakly struck?
Weakly Struck or Wear
A fullhead on standing liberty quarter require what?
Mercury Dime void location?
What three designation are there for Mercury dimes?
What another consideration for eye appeal for copper coins?
Color
What are three designations for copper coins?
Cleaning copper coins create what kind of color?
Pink
Toning
The effects of an environmental chemical reaction
Technical Grading for toning, has what affect on grade?
Artificial toning
Natural and artificial toning
What common chemical used in artificial toning?
Artificial toning Coin
Coin that exhibits bag toning
Why do people artificial toning Coin
Whizzing
What whizzing looks like
why do people whizz coins?
Thumbing
Another artificial enhancement
Signs of circulation
Look for contrast or a difference in color
What is the highest point on any coin?
outside rim
