Swanson RSA found the owner after contacting an existing member with the same last name that was engraved on the case.
Peter's grandson Shane Hintz said while getting a call from the Police was a surprise, he was glad to hear the good news.
"Thanks for returning this to our family," he said.
While Peter and sadly, his son Paul, have passed away, Waitematā East Police are delighted to reunite the Hintz family with this family heirloom.
Tactical Crime Unit Constable Samantha Cates said it was rewarding being able to return the item back to the family after so many years.