100 Dollar Confederate-Question

Well, compared with modern US notes, all Confederate notes have "low numbers", so it's not quite as special as a "number 2" modern note. Still, I think it would add some kind of premium.

Yes Lou (I'm too a Lou), that deranged looking guy was one of our country's finest statesmen, Vice President (1825-1832) John C. Calhoun. He actually 'was' well adapted to setting things on fire with his mind as he kindled the 'doctrine of nullification' and the 'doctrine of concurrent majorities'.
As for the note itself, this was an interest bearing note, so it's purpose was to serve more as a bond than as normal currency. I concur, this note is all about the '2'.

That is some of the funniest stuff I have read in a while

Well Zeewool I can assure you it is 100% authentic. I would say it is at least a VF 20.

That seems quite a bit more appropriate than the $90 that you felt was 'too high' before.
A good many people will pay tremendous premiums for low serial numbers on these old notes because out of the hundreds of serial #2s that were probably issued, only a hand few reasonably still exist.
Congratualations!

No, not by a long shot. I am not entirely sure of the sequencing of the Confederate notes, but I would imagine that it followed a similar path as the Federal issues that were born at the same time for the same reasons. Since Confederate notes bore no series number (that I can detect), I presume that the date of issuance determined the sequencing. Consider this, once a run of notes reached a certain high number, say 10,000 for a $100 note, the serial numbers would start all over again at #1.
Take the 1862 Federal one dollar bill for instance; there were over 28 million notes issued between 1862-1869. The serial numbers ranged from #1 - #100,000. This means that the numbering sequence started at #1 (284 times). There were 284 notes issued with the serial #1, but only one (series #1, serial #1) was the first one. On the Federal notes, a series number was located (in various places) on the face of the note.
If you own an 1862 one dollar note with a series number of say 234, this means that your note was not actually printed and issued until a year or two after the civil war was over. Serial #1 of series #1 was the very first one dollar bill issued by the US in 1862. It was presented to then Secretary of the Treasury Salmon Chase (whose portrait was on the note), and is now in the safekeeping of the Chase Manhattan Bank in New York.

Your particular note is not 'the' second note of this type printed (for sure) as the date of August 28th is somewhere in the middle of the run of this type. The other serial #2 that I have seen was dated April something. No matter. $15K will mean a nice profit margin on whatever you paid for it.

Here is a scan of the 3,310th note issued by the US government. It is series #1, serial #3310. (Note the location of the lower serial number). Wish I still owned it.

Approximately the very first 5000 $1 notes were issued with the lower 'red' serial number directly on top of the 'red' Treasury Seal. In an effort to remedy this color clash, the number was hastily moved to the location of on top of the numeral '1' in (the viewer's) lower left corner of the note. Check it out, 'any' 1862 one dollar note you will ever find or see will have the lower serial number in the lower left corner. (If the serial number is over the seal as this one is, well, you know what to do, if you can afford it). There are only a very small handful of these notes known to exist.