I picked up a few of these, which are notably in NGC slabs. Very nice coins these Morgan dollars are ( buy the coin, not the grade) and due to the large volume, the market for some excellent Morgan dollars was momentarily saturated - I did manage each well under going rates.
The odd one in the lot is a stunner from San Francisco dated 1878. Such a beauty, but conspicuously graded "Brilliant Uncirculated" like so many dubious pieces of similar vintage. I'm guessing NGC processed such a volume for the customer, they were more of a practice certifying genuine rather than grade. Regraded this would probably be MS 64, although I'll leave it as it is - safe from harm is all that matters.
Little detective work was required to find who the seller, shall we say, liquidator was - a largish coin and jewelry firm in the city. I suppose they put in a bid for a lot or were contracted as an agent. Better money could have been realized with patience - ebay can only move so much of a glut at good realized prices. I'm happy with what I managed to get away from the dog pile.
Which vault? I really do not care about pedigree, a beautiful quartet of Morgans at a very good price.