Hello! Dear colleagues,can anyone of you identify & evaluate the above shown roman bronze coin? So sorry for the weight & diameter,the coin is not mine,I was asked for help by a friend in vacation now.
Thank you very much in advance!
Any usefull piece of information will be much appreciated!
Andi👋
P.S.: I believe that the issuer is Constantin I The Great but I don't know more & the coin's value.