I assume these are simply misaligned but a second doesn't hurt as I continue to learn Everything weighs either 2.49gm or 2.50gm so chalking that up to.... localized air pressure? hehe. So we have picture of the whole lot front and back (even though the lighting changed they are in the same order, forgot to take one before doing the closeups) Each close up SHOULD be "thickest part/thinnest part" but if they got out of order I sincerely apologize.
If its seriously off center, only then it is classified as a mint error. There are plenty of those types of coins- cents, nickels, dimes, quarters (with a slightly larger rim on one side, and a slightly smaller rim on the other) circulating. I have encountered a few dimes of that type but found that they were not valuable, and sent them back into circulation.
But, however since those 1 cent coins are in fairly good condition, you should save them, especially since you cannot buy anything nowadays even for 70 of those pennies.
Just Misaligned Die Strikes.. Nothing else http://www.lincolncentforum.com/misaligned-die-errors-vs-off-center-strikes/
