Searching for Master Die Doubling Examples

I am undertaking a research project and I am searching for attributed examples of Master Die Doubling.

Can anyone help me by providing links?

My primary target range is 2004 to current. I am aware of examples on the 2022 American Women Quarters Series and on a 2023 Nickel. Are there any other examples?

I would also be interested in examples from 1980 through 2003.

(By the way: I have been searching!)

Any help appreciated!

 

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Both Mints, 1982 Washington Quarters:

https://doubleddie.com/1827525.html
https://doubleddie.com/1827546.html

 

Thank you!

 

There are three primary sites I use for varieties: Wexler, Variety Vista, and copper coins.

Google has this cool feature where you can narrow your search to a single site. Copy and paste each of these into Google:

"master die doubling" site:doubleddie.com
"master die doubling" site:coppercoins.com
"mdo" site:varietyvista.com