I am refinishing and restoring some antique doors onsite. I would like to remove the knobs and lockset, I can get the knobs off but the rosettes are on there tight. There is no slot to pry them off. I go the knobs off by pushing on the little hole with a spring mechanism, and there is a similar hole close to the rosette but no response to poking anything in there, there doesn't seem to be another spring. I have tried turning the knobs with the key and no progress. I took out the spring and poked a screwdriver in there to see if there was a way to push the opposite knob off, but no luck so far.
Thank you for your help!
(Here are the images, can't get them to upload)