Hello and welcome to the forum,
I’ve moved this thread over to the correct forum.
“Bolonia” is the Polish spelling for the Italian city of Bologna.
Yes, this cross appears genuine, although strangely it looks like it has been cleaned. These should have an oxidized “antiqued” finish.
All thoughts and opinions expressed are those of my own and should not be mistaken for medical and/or legal advice.
"Tomorrow hopes we have learned something from yesterday." - John Wayne
thanks for quick reply and information.I did not clean it,maybe is reflection from camera.However thanks once again.