Take a look at the first image... Note: When I first saw this image I assumed my coin was the same as the #2 coin because of the color. Then I noticed that each variation of the coin had a different weight, so, I weighed my coin. It weighs exactly 2 grams. The second image is a picture of the coin on the scale. THEN I NOTICED IT. In the first image. The only difference in the obverse sides of coins 1 and 2, that I can see, are the devices on either side of the 5's. My coins design matches coin #2 in the image, but it only weighs 2 grams. What I think happened is, somehow, a Copper-aluminium planchet from the #1 coins process got mixed in with the Copper-aluminium-nickel planchets in the #2 coins process. Tell me what you guys think? Also, If it is a planchet error, what might this coin be worth?