In this article - שישה כוהנים פדו את הבנש"ק מבעלזא it describes (and has pictures) of the Pidyon Haben of the Belzer Rebbe's greatgrandchild being redeemed by 6 Cohanim. They are even mentioned by name.
It seems from the pictures that all the Cohanim are doing the Pidyon simultaneously.
Does anybody have details about how this is done?
E.g.: Is each Cohen given 5 coins?
Or are the 5 coins divided between the Cohanim? (Is this even valid?)