Finally I was able to find info about original 9dbi omni rubber ducky antenna!
All pictures are from this site : http://www.digga.eu/wlan/9dbi/
Here it is – no surprises here π
Looks like there is no way to tune this antenna – here is the feeding point.
For more info about building this one go on site http://www.digga.eu/wlan/9dbi/
And for me was just left to see only ripped 7dbi omni antenna π
Thanks to the author of the site for the pics.