Alright, well I lied about one National Bank. I'm interested in more information on two.
Both from Manistee, Michigan.
Charter 2539 and 2606.
The First National Bank Of Manistee and The Manistee National Bank Of Manistee.
The latter, the 2606, has two known notes, both $50 First Charter, the second one being recently discovered and sold on Heritage for 30.000. That's easy to gather from the bit on Heritage "As an added bonus, this is only the second note reported from this Manistee bank"
And from a book entitled "Michigan National Bank Notes 1863-1935" by Dr. Wallace G Lee, the bank had $4300 outstanding at its closure in 1910.
With 2539: the same book states there were $3370 large and $96,630 outstanding at close in 1933.
It states there are 11 Large known and 17 Small known, although I can only count 16 small notes by the Serial Numbers listed in the book. Attached.

But, going off of Heritage sales, there's an additional few...
3CBP $10: 1003-B, 1305-B
TY1 $10: E2295, D672, A962
And an additional large size $10 serial 2290-A sold on Stacks.
Stacks says it's the fourth first charter known, which would make sense by the three listed in the book and it being a new discovery.
Heritage doesn't say much on their listings, except "One of a dozen large reported on this bank" in 2013 and "A very scarce bank in large size, with just seven such examples recorded in the Kelly census" in 2002.
So...
There should be 14 known large notes and 19 known small notes (or 20, if you go off of Lee's count of 17, even though I only count 16)
Are there any more notes known, but not yet reported in the book or sold? I mean, had the new 2606 $50 not been offered for sale, I wouldn't have known about it, but anyone with access to PCGS searching ability should have been able to find out about it.
I'm just wanting to get a good idea on how many are known to exist.
Another question I have, though, is where do they come up with the numbers on antiquemoney.com and Heritage? "The Manistee National Bank Of Manistee in Michigan issued 1,347 sheets of $50 series of 1875 national bank notes." as found on antiquemoney and "issued just 1,347 two-subject sheets of 1875 $50s and $100s before its liquidation in 1901." on Heritage.
Am I missing a source for these amounts? Are they accurate?