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- Regular strike
Synonym for business strike. A coin struck using conventional coin pressing methods.
- Refining
The separating and purifying of gold and silver from other metals.
- Rim
The raised area around the edges of the obverse and reverse of a coin.
- Regular issue
A coin struck for commerce. There may be Regular and/or Proof strikes, as well as die trials of regular issues. Also see: Business strike and Commercial strike.
- Rubbing
The barest trace of wear on the high points of a coin. Just a step more severe than "friction" on the scale of adjectives used to describe degrees of wear. Usually, a coin with rubbing has virtually full mint lustre intact.Also see: Friction
- Rarity scale
A numerical-rating system used to quantify rarity. One example is the Universal Rarity Scale.
- Rainbow toning
Toning which is usually seen on silver dollars stored in bags. A full spectrum of colors are represented, beginning with yellow, then green, to red, to blue, and sometimes even black.
- Relief
The height of the devices of a particular coin design.
- Rim nick
A mark or indentation on the rim of a coin.
- Raw
Refers to any coin that is not encapsulated by a grading service.
- Risk
The exposure to adverse market movements, mischance or the possibility of losing money.
- Round
Synonym for a round Pan-Pac commemorative fifty-dollar coin.
- Rolled Edge Ten
Common name for a particular 1907 variety of the Indian Head eagle.
- Resistance
In technical analysis, the price level where selling is expected to emerge.
- Roll
A set number of coins stored in a coin wrapper. Rolls were originally paper wrappers, and today are typically plastic.
- Rolled Gold
The process in which a layer of carat gold alloy is mechanically bonded to another metal.
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