Got a couple rolls of 2009 mixed in with my last purchase so figured I'd better check for all those DDRs. A quick scan of a few obverses first produced a surprise! Ended up with 7 DDO-001 from the roll.
2009 FY Lincoln cent doubled die DDO-001 - later die state - marker is chip on collar to right of LIBERTY
Oh yeah, and there were a bunch of early die state DDR-046 coins in there as well, which looks a whole lot like DDR-004
2009 FY Lincoln cent doubled die DDR-046 - marker is die crack from O and EDS pre-die chip depression on shoulder
Exactly right on the spotting thing. The DDR was impossible to miss under almost any lighting angle, but the DDO was pretty much a thickness thing. If you aren't used to just spotting the extra letter thickness on modern DDO's you'd probably never pick that one out with a loupe. I didn't see the notching until I put it under the scope.
Very nice TB! Great shape too! I wish Wexler were able to update his website. I have the 2009 D PL DDO-002 (plate coin), it's been over a year since he attributed it and to this day I have yet to see another one posted on the board.