First you need to know what country they're from - people post questions here from all over the world.
Then you need to know their dates and denominations.
If they're U.S. or German coins, you also need to see if they have mint mark letters. Many U.S. coins and all German coins have a small letter worked into the design somewhere that tells where they were made. For example, in the U.S. "S" means San Francisco, and in Germany "A" stands for Berlin.
Given those facts, please post a new question with extra details. If you have more than one coin with a different date or denomination, post each one in separate question - it'll make it easier to answer and group them with other related questions.
We cannot see you rare coins. Since we cannot even see your rare coins, we do not even know if your coins are indeed 'rare', what they are, their condition, when they were made - we do not know anything. Please specify in a different question what your coin is, the date it was made, and the condition it is in.
i don't know take it to the bank { not trying to be mean }
The value of gold coins can be determined in two different ways--the melt-down value and the coin value. The melt-down value is the value of the pure gold in the coins, which is determined by the weight. The face value of the coins can be found on a collector's website.
don't know don't care
Answer So you have a Silver Quater and want to know if it will be worth anything as time goes by. Time has nothing to do with the value of coins. What makes them valuable is how many of that particular coin was minted that year. It's the amount of coins in circulation that makes a coin worth anything and of course the condition of the coin. If it's scratched it could be hundreds of years old, but not many collectors will want it scratched and even if they do, you won't get the full price of the coin unless it's in perfect condition. The best way to see if your coin is worth anything is to take it to a place that sells coins and see what they say regarding your coin.
i dont know is president obamas chicken scraps worth anything
I don't know. Maybe cent or maybe a million dollars.
I don't really know the answer to this question, but I found this website and it answers questions about coins: http://coinedformoney.blogspot.com/2005/07/that-old-penny.html
You don't "change" valuable coins for money. They have to be sold at auction or to a dealer. In any case there are only a very few coins worth $1 million, and as far as collectors know, all of them are either in museums or private collections. You're not going to find anything worth anywhere near that much in your pocket change.
no but if you see an event that says get free coins DONT GO THERE YOU WILL GET SCAMMED AND ALL YOUR COINS,YOCASH AND FURNATURE WILL BE STOLEN! this happened to me only yesterday and i had thousands of coins worth of stuff
So far just a few error coins missing the dates from the edge of the coins and the Proof and Uncirculated coins sold from the Mint have slightly higher values.Also I hope you know the coins are brass not gold.
Each coin would have to be seen and graded by a collector or dealer.