They only minted this coin in Philadelphia and New Orleans during 1851. The worth of the silver 3 cent pieces depends on the condition and mint mark. This is also a type 1 coin which you can read about in the links below.
Philadelphia: $23 in good condition up to about $260 in choice uncirculated grade.
New Orleans: $32 in good condition up to about $460 in choice uncirculated grade.
The U.S. did not mint 3 cent pieces in 1802. Silver 3¢ coins were struck from 1851 to 1873. Copper-nickel versions were made from 1865 to 1889.
Silver 3¢ pieces were minted from 1851 to 1873 Copper-nickel ones were minted from 1865 to 1889
There was no confederate money in 1851.
Three-cent pieces were issued to facilitate the purchase of stamps, which then cost 3 cents. The denomination was issued in both silver and nickel, so values depend on date, mint mark (1851 only), condition, and metal. Two guides are: Silver: http://www.numismedia.com/fmv/prices/3scnt/pricesgd.shtml Nickel: http://www.numismedia.com/fmv/prices/3ncnt/pricesgd.shtml
No silver one cent coins have ever been made by the US, but it may be a silver 3 cent piece, they were made from 1851 to 1873. Look at the coin again and post new question
U.S. half dollars aren't solid silver. They're 90% silver with 10% copper, currently worth about $10.
probably a novelty...lincolns were never made in silver In the 60's kids would dip pennies in mercury. The mercury would bond tightly with the copper, resulting in a cent that looked silver or nickel in color. This was before the dangers of mercury poisoning were known.
A silver 1829 5 cent coin is worth between £30 and £80
50 cent
To calculate the value of 1,800 fifty-cent pieces, multiply the number of coins by their value: 1,800 x $0.50 = $900. Therefore, 1,800 fifty-cent pieces are worth $900.
The value depends mainly on the date. Those dated 1964 are 90% silver and currently worth just over $7. 1965-1970 are 40% silver and worth about $3. Anything 1971-present is mostly copper, and worth face value.
One of the easiest methods is to weigh it. A genuine 1851 Seated Liberty silver dollar should weigh 26.73 grams, or slightly less if it's heavily worn. If one side has an Indian head on it, similar to the cent minted 1859-1909, it's a novelty coin, and not worth anything.