It's nice to see someone chime in on these. I've always had questions regarding the glass eyes on mine. I have two of the telegraph Graflexes. Both have different variations of the glass eye. One is similar to yours: push in and lock. The other is the standard threaded type. Both of the bunny ears are pretty shiny as well and both are Folmer/New York. Check them out below:
Glass eye is NOT original to that flash. Looks like someone replaced it with a patent glass eye and had to "fit" it for some reason. The original eye would be a like and early folmer. Sharp angled and not polished.
Bunny ears might be replica and would normally be fastened by
I don't have the right tools to measure the thread right now, but this is the set screw next to a 0-80 screw. My first telegraph had both of the set screw broken slightly because they're so small and brass, but this one was in much better shape. I know that probably doesn't help much more either