1969 S Proof Lincoln Cent

[DCoop1968]

I know this is not the famous 1969 S doubled die. But I see a doubled die on “IN GOD WE TRUST,” “LIBERTY,” and on the “1969” date. I can see an RPM, along with thickness on “E. PLURIBUS – UNUM.” Could this be mechanical doubling? I checked Variety Vista's website and could not find one that matches this coin.
1969 S 4.jpg 1969 S 5.jpg 1969 S 3.jpg 1969 S 2.jpg 1969 S 1.jpg

[MintErrors]

In my opinion, if it doesnt match a known documented example, its more than likely something else. Especially after decades of time have passed.

As for proofs, many are struck twice or more to give the coin the best look as the U S Mint can provide.

It is very possible each strike could be just a touch off, and they are scrutinized by attributors more than a business strike (normal) coins.

Additionally, look at the direction(s) the doubling occurs, its pretty random. IF this was a true doubled die I believe the direction of the doubling, where evident would be from the same general direction. It could very well be mechanical damage which is basically some sort of worthless doubling.It was very common in the 1960's through the 1970's.