Doubled Die Question?

[Keith]

After going through this forum and reading post after post, Sticky after Sticky (past and present). I am continually amazed at the knowledge and expertise that you guys have. I cant help but think some of you were Quality Control Inspectors at the US Mint!. So here is my question. Is there a master list of every possible doubled die combination or are there still unknown DD's out there waiting to be discovered???

Keith

[Peter]

The chances of every possible minor doubled die, obverse or reverse having been discovered is questionable given the amount of unsearched coins minted and dies used. The obvious big ones may have been, but some to minor to list or as yet unlisted, still pop up, as seen in some of the old threads on here as they are discovered by members.

[Maineman750]

Even big ones can pop up at anytime. The 1988 doubled ear was discovered by a member here in 2011. But the best master list I know of is coppercoins.com , which has them listed by date/mm.