I just obtained a copy of the Revised City State of the Invincible Overlord set.
It is a confirmed 5th print, with the highest number being 560 on the Treasure Vault page.

The set came with what is listed on the JG listings, so I am sure it is a complete set...

Well... actually More than complete..

Along with the two large maps of the city state (one Player, one Judge) and the 2 City State Campaign maps (one Player, one Judge); there is also a smaller (17" x 22") tan map of the City State which is obviously a Judges copy (with the extra data for the streets, the buildings, and names for various places).

The extra map is blank on the reverse side.
I have seen this map before, but it is not listed as being a part of this Printing for CSIO.
Did I misss something in the JG listings?
Anyone have any information about this?

YUP!
Exactly so.
And that explains it.

The E-Bay listing I got the CSIO set from also included a Wraith Overlord set, which was the only item in that listing I did not already have a complete set of (not counting various printings of course).

Before winning that E-Bay listing I did actually have a copy of the Wraith Overlord book only although I was able to obtain a Zerox copy of the map thanks to help from another Acaeum member (Thanks again Jason).

Anyway, that is where the half sized map belongs.
THANK you Shane!