Glossary - An Introduction to Coin Investing & Collecting
A B C D E F G H I J K L M N O P Q R S T U V W
R
- Rare:
- A coin which only a small number exist. (See "Scarce.")
- Rarity Scale:
- Estimate of the surviving population of a coin.
- Unique:
- One known
- R-8:
- Estimated two or three known (Excessively Rare)
- R-7:
- (High) Estimated four to six know (Extremely Rare)
- R-7:
- (Low) Estimated six to 12 known (Very Rare)
- R-6:
- Estimated 13 to 30 known (Rare)
- R-5:
- Estimated 31 to 75 known
- R-4:
- Estimated 76 to 200 known
- R-3:
- Estimated 201 to 500 known
- R-2:
- Estimated 501 to 1,250 known
- R-1:
- Estimated over 1,250 known
- Raw:
- A coin that has not been graded, certified, and placed in a tamper-proof capsule by a grading service.
- Red Book:
- A Guide Book of United States Coins.
- Relief:
- Any part of coin's design which is raised. (See "High relief," "Low relief.")
- Repair:
- An area of a coin which has been worked on to fix a defect. Repairs must be mentioned in the description of the coin. [See "Altered date (or mint mark)."]
- Reproduction:
- A copy so marked as required by law, with an "R" or a "C." (See "Copy.")
- Reverse:
- The back of a coin. The side usually opposite from the portrait or date.
- Riffle:
- A groove in the bottom of an inclined trough or sluice, for arresting gold contained in sands or gravels.
- Rim nick:
- An abrasion or cut into the rim or edge of a coin, usually occutting through contact with another coin or coins (as in a bag of coins).
- Roll:
- Oringinal coins, assembled at the time of manufacture, usually by a bank and then placed into a paper tube. There are, for example, 20 dollars in a roll.