Trying to get Stock .otf files out of my PW3.

Hi, I'm trying to get the stock helvetica.otf files out of the stock firmware bin for the PW3. I a long time ago somehow got the helvetica nue LT 75 Bold.otf out of the device somehow and now I want to get the LT medium 65 otf now. I made it a ttf and use it on my Boyue devices but would like a non bold variant now. I have so far used the Kindletool to extract the factory bin and cant find a single .otf in there. Where are the stock fonts actually on the PW3 it self, I was under the impression they were in usr/share/fonts?
I also have the PW3 still jailbroken on 5.9.2 with KUAL for reference if you know how to get them out of it.
Any help would be appreciated.
Malcolm