It appears that she doesn't know enough about coin production to know the difference between true errors & varieties and normal coins. Unfortunately, too many people today are drawn to numismatics by the lure of making a quick buck. Chris
...besides worth, which has been answered, what is it about the coin you want to know? A better question should be asked...Spark
As stated, worthless doubling. See http://www.doubleddie.com/144801.html and educate yourself on how to spot it.
Generally it will be more informative for you if you tell us what you think is different and let us comment on it.