It's part of a magic trick called "scotch and soda". The rest of the trick is missing... I think I spent it. These magician's coins are made by private companies from two real coins. They usually sell for $6-$8 in novelty stores and can often be picked up on eBay for less.
yes if the workers screwed up enough to make a dime/penny
The value to a collector depends on the coin's condition. Show it to a coin dealer.
a dime
By far it is the penny.
dime
The dime has a greater value in trade, and greater purchasing power, but the coin is physically smaller than the penny.
Definitely need more information than what this is. Is it a quarter? Half? Nickel? Penny? Dime? What condition is it in?
The current US Dime weighs 2.268 grams. The current British Penny weighs 3.56 grams.
It's a novelty coin, manufactured for the close-up magic crowd. You can purchase them from novelty shops and there is no special value. If you look closely at the dime side you should notice a small line where a dime was inserted into a hollowed out penny. Post a picture somewhere I want to see...
There is only one combination of two coins that will equal 11 cents. That would be one dime and one penny. Since the question limits us by stating that one coin is not a penny, then clearly the OTHER coin *must* be a penny.
first of all i dont know second, i want to ask this question: How would you know it is a 1920 mercury dime if the obverse was a penny? It sounds like you have a magician's coin made by cutting apart both a dime and a penny, and hollowing out one side of the penny so the dime side snaps into the penny side. It's interesting but has no value to a coin collector.
Lincoln is on the penny, Roosevelt is on the dime. It's likely a novelty coin with no value.