This date is notorious for machine doubling. The "tell" on this one is the S mint mark. In 1969 the branch mints would receive dies from Philadelphia without the mint marks added. The branch mints would then have to hand punch the appropriate mint mark into the die before putting it into production. The doubling of the die was created during the production of the die, i.e. before the mint mark was added. Therefore the mint mark was not doubled. The mint mark on yours shows clear doubling, only possible cause is machine or mechanical doubling.
Just 1 Cent.. It's not a Doubled Die variety Look at this true 1969 S Doubled Die - Especially Look at the words Liberty and IN GOD.. Clear doubling
I don't know. I didn't write the Red Book. But I gave you more information than the book did. You do not have a Doubled Die.
Chris take a careful look at the doubling photo in the Redbook and notice that the edges of both of the "1", "9", .... all of the date and "Liberty" letters, Notice how each image is almost exactly the same height and they merge together, showing each had the same force squeezing them when the die was made . Now look at your example, notice this doesn't happen, the lower image looks "smeared or flat" and does not merge. There is distinctive separation. That is the sign of a MD. As you train your eye, they will become more apparent. Jim
Machine or Mechanical doubling unfortunately is common. Many others have also thought that they have found the "big one" and have posted the same issue as you have. Some members get upset and don't believe us.. But I assure you we are giving you the best information
Something was added to it. Maybe paint or solder. There are no Copper Planchets with some silver or nickel in them. Especially 1971.. I know 1971, that's my birthyear.