Glossary of Numismatics - S

S

Series

Set of years coin was minted with a specific design and denomination.

Scruple

One Roman scruple = 1/24 Roman uncia; the modern (nominal) estimate of the weight of the Roman scruple is 1.125 g.

Silver Dollar

A one-dollar coin minted in the U.S. (until 1935), and Canada (until 1967). Dollar coins made after those dates are sometimes called "silver dollars" although they are actually made of nickel or other metal. Dollar coins struck in Canada since 1987 are more commonly referred to as Loonies because of the loon design on the reverse.

Slab

Plastic case containing a coin that has been graded and encapsulated.

Spanish dollar

Coin issued in Spain and its colonies from 1497 to 1864. Equal to 8 Reales. Also known as a 'Piece of Eight'. It was legal tender in the United States until 1857.

Spot Price

Quoted market value of one troy ounce of a precious metal in bullion form.

Stainless Steel

A combination of iron, carbon and another element, usually chromium, to prevent rusting. Coins struck on stainless steel are very durable and maintain their shiny appearance, but the hardness of the metal requires that the coins have a low relief in order to prolong die life.