Depending on which coin you have, the condition it is in, and a couple other factors. It can range anywhere from $1.00 to over $100.00.
Specifics of the coin and condition are what dictate how much it is worth.
No such thing as a "Limited Edition" Sacagawea dollar or any other U.S. coin. Unless it's a Proof coin, it's face value.
Several versions of the Queen Mother Centenary £5 Crown were issued, the ordinary, brilliant uncirculated version can be bought for about £10, the silver-proof edition sells for around £34.50, Piedfort silver-proof £67.50 and the gold-proof edition £925. Somalia also issued two commemorative coins celebrating the Queen Mother's Centenary with face values of 25 and 250 shillings. These are worth about £5 and £20 respectively
It depends on your preference. A silver proof set contains coins made of 90% silver, while a regular proof set does not. Silver proof sets tend to have a higher intrinsic value due to the silver content, but they may also come at a higher cost compared to regular proof sets.
No 1972 silver proof sets were made, only single Eisenhower uncirculated & proof coins were struck in 40% silver.
No silver coins were included in the 1973 Proof sets.
1964 proof Kennedy halves are 90% silver, 68, 69, 70 proofs are 40%. The 3-piece Bicentennial silver proof & silver mint sets are 40% and 1992 to date silver sets are 90%.
A 1985 proof contains no silver coins.
The 40% proof silver set was a 3 piece.
The U.S. Mint did not issue a 1979 Silver Proof set. None of the coins contain any silver.
No US quarters dated 1966 are silver. The only US quarters struck in silver are dated 1964 or before with the exception of silver proof sets (most proof sets are -not- silver and silver proof sets are marked as silver) but those are dated from 1992-present.
Most New Zealand silver Proof coins are sterling silver containing 92.5% silver.
A 40% silver "S" mintmark proof Eisenhower contains .3161oz of pure silver or 8.96128 grams