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Message:: [QUOTE="lwrncwg, post: 187330, member: 7565"]Hi !With out a photo it's tough to be sure just what you have. Just making a guess, because you found quite a few of these errors in your roll, they may be what is called machine or mechanical doubling. This happens when parts in the coining press loosen, allowing the dies to shift slightly during the strike. This produces a secondary image with a flat, shelf-like image. True double dies will generally show notching of the corners on the letters or numbers affected, and the secondary image will be raised and rounded like the main image is. Hope this ifo is helpful to you. When I started looking through Lincoln rolls, I began with a roll of 1969-s pennies & found about a dozen of these machine doubled coins. I thought I was sitting on a gold mine until I found out what they really were.A great book to have if you are serious about checking through Lincoln rolls is The Cherry Pickers Guide to Rare Die Varieties by Bill Fivaz & J.T. Stanton. Excellent referance for errors, and great for explaining the minting process & how errors occur.[/QUOTE]