Hello guys, I bought a beautiful Kranz Petzval lens at an auction. But the front glass element is loose.

Maybe I can glue it to the brass mounting, because there is no other way to mount it. No thread like in other lenses.

Maybe you can help me to find a good way to fix this problem. Is there a glue that is good for mounting glass on brass? It should be very solid.

Yes it´s not a adequate way, but I wanna keep it for a lifetime.

I am thankful for everykind of help or tip