"Douglas - I remember that 100L2 cover. I seriously considered bidding on it. Terrific item. Congrats."
And incredibly the auction house description included the suggestion that it be soaked off the cover!
I'm happy to see that you are leaving all of the inner, body-of-plate stamps for the rest of us.
Here are a couple from the inner body of the plate:
"You have a really nice collection of marginal copies - imprints, etc. Very nice to see them."
Thanks. All an outgrowth of my Dad getting me started on collecting common post WW2 plate number blocks when I was 9 years old, and my discovering plate number singles a couple years later, with my first being the low value 1908 set.
Here are two more: