I'm at a loss trying to find anything about this coin/medallion.
It's obverse shows the effigy of Paulus Vi, looking right with the script " PAULUS VI. PONT.MAX.ANNO JUBILAEI.MCMLXXV.ROMAE.
I have trawled the internet looking for references to this example but as yet, have been unsuccessful. There are many similar examples with different effigies on the obverse, some with similar reverses showing a depiction of a sunrise above the Vatican. These are not the same, just similar.
I don't know what the coin/medallion is made of. It's non magnetic, weighs approximately 9 grams, measures approximately 27mm in diameter and has a thickness of approximately 3mm. Any help would be very much appreciated. Ken


