All, As a beginning disclaimer, I am new to the forum and I am very green at anything to do with coins other than spending them at a vending machine..that said. After going through an old box of pennies and nickels, I found what looks to be doubling on the reverse side of a 1966 penny. I would like your opinion on whether or not this is legitimate doubling? Machine or what? And whether or not there be any real value here. Thank you in advance
Welcome to the community. You're coin is doubled, but it is mechanical doubling. No added value and very common. Don't let this discourage you, there's plenty out there to be found. For future posts, full images of both sides should be included to help make determinations.
Welcome to the neighborhood, Eric! Machine doubling aka mechanical doubling or strike doubling or ejection doubling is known for being "flat and shelf-like". ~ Chris
Ive seen examples and heard others talk about mechanical doubling. At least now I have an actual example of what the difference is. Thanks!
Eventually, you will find hundreds of examples of machine doubling for every true doubled die. ~ Chris