As promised, here is the cue:
Obviously the wrap is not original. It's black with green spec linen. But it has the original Brinswick decal, and ivory joint with brass pin, ivory ferrule, and a whole lot of character.
It does have an old brown Brunswick KU bumper on it, which would not be original. The KU Bumpers came much later. These cues, if they had a bumper, originally had what was called a rubber "noise subduer", which was black and dome shaped. I think the original was about the same diameter and height as a KU, but as I said black and dome shaped. But still it's pretty cool I think.
I pulled the bumper off to compare the screw. I have some antique Brunswick parts including some KU bumpers and screws and the screw appears to be an original Brunswick KU screw as well.
Still trying to figure out if it is a conversion or original two piece. If it is a conversion it was done a long time ago....maybe 40's or 50's or earlier?
The wrap groove is the original Brunswick type that is deeper at the ends and would make a bulge in the middle. The wrap installer dealt with this by pressing the wrap more in the center and pressing it less toward the ends. It makes it look more flat. Hard to tell from the pics but that is what was done.
It does have some features in common with the OPs cue. This one has a piloted joint where his is flat faced. This one does have the flat area on the but with the weight stamp (18) though I neglected to get a picture of that. It has a brass pin as well, but I am not sure if they are the same. The wrap on this one is also more forward than the OPs, covering more of the points and generally resembling the later Master Stroke cues in a way.
So, there it is.
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