In 2016 there was a discussion of 1882-O/S Morgan dollars on CT. @messydesk and I were two of the main posters. I may have some additional info to add but only if we can bump that discussion. OP: Paddy 54 Discussion Title: The 1882 O/S Morgan Top 100 VAM or Refuted Over Mint Mark. Note: The discussion was NOT ABOUT whether these coins are over mint marks. The discussion was about the EDS or LDS examples.
okay, per your request, I bumped it. Link: https://www.cointalk.com/threads/the-1882-o-s-morgan-top-100-vam-or-refuted-over-mint-mark.282848/
I got to it by asking Google for 1882-O/S Morgan insider messydesk site:cointalk.com But of course @Treashunt beat me to it.
beat you by only 3 minutes! That said, if I can find it, I have one that is apparently, to my eye at the time, a VLDS, there was only a minute shape of the under S. I tried to get PCGS to slab it, but they would only do the obvious one.