Pure silver, is generally too soft for producing functional objects, so silver is usually alloyed 
with copper to give it strength while maintaining the appearance of a precious metal. Sterling silver 
contains 92.5% silver and 7.5% of other metals, usually copper.
    Sterling silver was first used for commerce as early as the 12th century. The 
    first legal definition of sterling silver specified that 12 ounces of silver for 
    coinage should contain 11 ounces 2 1⁄4 pennyweights of silver and 17 3⁄4 
    pennyweights of alloy, with 20 pennyweights to the Troy ounce.
    Silver objects sold commercially are usually stamped with one or more silver 
    hallmarks indicating the purity of the silver, the mark of the silversmith, and 
    sometimes the date and location of manufacture.
    Silver flatware includes tableware items that are relatively flat and 
    constructed as a single piece. This includes silverware such as forks, knives 
    and spoons.
    Silver holloware (hollowware, or hollow-ware) includes tableware such as sugar 
    bowls, creamers, coffee pots, teapots, tea sets, soup tureens, hot food covers, 
    water jugs, platters, butter pat plates, and other metal items that went with 
    the dishware on a table.
    While sterling silver has intrinsic value for the silver content, antique sterling 
    silver can have far more value as a collectible item. The additional value depends on 
    the silversmith or maker, the quality of craftsmanship, the condition and age of the item. 
    Renowned silversmiths include:
    - Buccellati
- Chrisofle
- Georg Jensen
- Gorham
- Puiforcat
- Tiffany
- Towle
- Wallace
Read the full history of sterling silver at Wikipedia
by clicking here.