Assuming the coin is circulated and has no "S" mintmark, the 1920 Saint-Gaudens $20 gold coin is considered common. For an accurate assessment of value the coin needs to be seen and graded. In general retail values for circulated coins are $1,900.00-$1,990.00. Typical Mint State coins are $2,000.00-$2,100.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelry or have been cleaned have far less value if any to a collector or dealer.
There were no dollar coins minted that year. What you have is most likely either a counterfeit coin or a fantasy piece. Either way, they don't have any collectible value, any value would come from the precious metals (if any) in the coin.
Please check your coin again. The U.S. did not strike any silver dollars from 1905 to 1920 inclusive. If it's a different denomination, or from another country, please post a new question so that it will be possible to ID your coin.
Assuming the coin is circulated and has no mintmark, the 1920 Liberty Walking half dollar is a better date coin. For an accurate assessment of value the coin needs to be seen and graded. Most coins show a lot of wear. In general retail values for low grade coins are $15.00-$18.00, better grade are $40.00-$90.00 and coins showing almost no wear run from $140.00-$290.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelery or have been cleaned have far less value if any to a collector or dealer
The value of any coin is determined by a number of necessary bits of information. One of those bits is the exact date of the coin.
The U.S. did not issue any silver dollars from 1905 to 1920 inclusive.
There is no "N" mint mark on any US coin, so it's likely someone used a metal punch to add the letter to the coin after it was minted. Unfortunately that damage eliminates most or all of its collector value.
is there any value in the 1980 carter/Reagan picker coin
You don't. Cleaning a coin can do nothing but make them lose value. Cleaning a coin easily decreases the value of any collectible coin by half.
The collector value of a coin is lost when the coin is modified. Any value would be associated with the brooch.
The face value of any coin is what is inscribed on the face of it. The face value of a 1 Penny coin is 1 Penny.
In order to give an accurate estimate of value of any coin it is necessary to know the date on the coin and its denomination.
Assuming the coin is circulated and has no "S" mintmark, the 1920 Saint-Gaudens $20 gold coin is considered common. For an accurate assessment of value the coin needs to be seen and graded. In general retail values for circulated coins are $1,900.00-$1,990.00. Typical Mint State coins are $2,000.00-$2,100.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched, used as jewelry or have been cleaned have far less value if any to a collector or dealer.
The Gallieno Imperatore 218-268 coin does not appear to have any significant value. It is actually a commemorative Italian token, not an ancient coin.
no
The value of any coin is determined, in part, by the date on the coin, the mint mark of the coin and the condition of the coin. These three bits of information are required to establish value.
There were no dollar coins minted that year. What you have is most likely either a counterfeit coin or a fantasy piece. Either way, they don't have any collectible value, any value would come from the precious metals (if any) in the coin.