Chapter eight. All "silver" is not "pure" silver.

Silver bullion is generally made of 99.9% silver. It will have that printed on it someplace in all cases I know of. As long as you purchase from a reputable dealer you are pretty safe with bullion. This includes new coins produced by a few governments, which also state 99.9% or even 99.99% in the case of Canada.

US silver coins were made of 90% silver and 10% copper until 1964. After that they were made of a copper center clad with a silver colored surface (see  CLAD below). They no longer had any silver content. EXCEPT for the Kennedy half dollar, which went to 40% silver until 1970, then zero from 1971 forward. There are exceptions with some proof coins, made especially for collectors, which are 90% silver. It gets confusing and my suggestion is to simply avoid coins made after 1964.

Sterling silver is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper.

Nickel silverGerman silver, Argentan, new silver, nickel brass, albata alpacca or electrum is a copper alloy with nickel and often zinc. The usual formulation is 60% copper, 20% nickel and 20% zinc. Nickel silver is named for its silvery appearance, but it contains no elemental silver unless plated. The name "German silver" refers to its development by 19th-century German metalworkers in imitation of the Chinese alloy known as paktong.

CLAD. This means coated. A very thin outer layer covers copper (usually) . Not enough silver to be worth much of anything.

Read the words carefully

 Did you catch it? The words seem to say "In God We Trust. But they don't. Look again.