Glossary

All-Time Finest category
The Registry is divided into two sections. The first section, the All-Time Finest (ATF), ranks all current and retired sets. 
Many of the ATF sets are comprised of PCGS coins, while others predated PCGS and were made up of uncertified coins. These are sets from some of the greatest collections ever assembled. Their inclusion in the Registry allows collectors to compare their own sets to those owned by renowned collectors such as Bass, Childs, Eliasberg, Garrett, and Norweb. For these pre-PCGS sets, the coins are listed as either "Estimated grade," "Assumed grade," "PCGS graded," or "PCGS grade.”

Bonus points
When considering the ranking of Copper Coinage, Mercury Dimes, Roosevelt Dimes, Franklin Half Dollars, and Jefferson Nickels struck for circulation, bonus points or deductions may apply for desirable designations such as Red Brown, Red, Full Band, Full Bell Lines, and Full Steps. Mercury Dimes designated with Full Bands may receive 2 bonus points, for example. For proof coinage, Red Brown Copper, Red Copper, Cameo and Deep Cameo
designations may receive bonus points and non-Cameo and non-Deep Cameo coins may receive deductions. Depending on the set, coins with these desirable designations will receive bonus points or in some cases, coins will receive deductions if they do not have the designation. Bonus points and deductions can be viewed on the Set Composite page.

Circulation Strike
An alternate term for Business Strike or Regular Strike. A coin meant for commerce.

Certification Number
A unique number permanently sealed inside each coin capsule which may be utilized by the coin's owner as a reliable means of identification after the PCGS coin re-enters the marketplace.  The certification number is a 7 or 8-digit number which appears above the bar code on the lower right.

Current value
Current values are in the Set Registry are imported from the
PCGS Price Guide. The coin market is volatile and thinly capitalized. Significant short-term price swings are always possible. Collectors Universe, its principals and representatives do not guarantee a profit nor guarantee against a loss for any coin you buy or sell based on the information contained on any Collectors Universe website. You buy and sell rare coins at your own risk.

Grade Point Average
The GPA is the
grade of each item registered in the set multiplied by the weight and then summed.  That sum is divided by the total number of registered coin weights.

My Set Registry
The private administration pages in the PCGS Set Registry
where members log in and add, update, and delete their coins and sets.

PCGS Collectors Club
The Collectors Club allows collectors to submit coins for grading directly to PCGS.  The club offers many additional benefits including free grades and publications. 
For more information, click here.

PCGS Price Guide
The PCGS Price Guide is a guide to assist the coin buying public in determining values for all significant United States rare coins. The prices listed in the PCGS Price Guide are the average dealer asking prices for properly graded United States
coins. The prices are compiled from various sources including dealer ads in trade papers, dealer fixed price lists, significant auctions, and activity at major coin shows. Prices for the most actively traded coins are updated daily. Other issues are updated as needed. All prices are reviewed at least once a month.

Pedigree
A listing of a coin’s current owner plus previous owners
who may have had significant collections.

Proof
A coin usually struck from a specially prepared coin die on a specially prepared planchet. Proofs are usually given more than one blow from the dies and are usually struck with presses
operating at slower speeds and higher striking pressure. Because of this extra care, Proofs usually exhibit much sharper detail than Circulation strikes.

Population
A coin’s population is the number of coins graded for that grade since PCGS’s inception in 1986. 
PCGS offers a quarterly publication or an online version which is updated weekly.  For more information, click here.

Set composite
The items contained
within a specific set.

Set rating
The Set Rating is achieved by dividing the weighted grade sum by the total sum of
the weights in the entire set.

Weights
Sets in the Registry are weighted on a 1 to 10 scale with 10 being the rarest coin and 1 being the most common. While it may be in true in some instances that an item may be many times over 10 as rare as the most common item in the set, the Registry keeps the scale simple so that all levels of collectors can compete.

The Registry weighting is done by taking three things into account:

1. The overall rarity of the coin, i.e. the rarity in all grades
2. The rarity in the highest 2 or 3 grades
3. The price (because this is an indication of demand and importance to collectors)

What If? scenarios
A program in
My Set Registry which allows a user to determine how the addition of a coin(s) to a particular set might effect the user’s cost, value and ratings.