When Newcastle man Matt Streatfield was renovating his kitchen, he stumbled across a glass milk bottle that had a message inside it.
So, as many do these days, he took to social media to track down its original authors.
One of them was local plasterer, Ron Niddrie, who signed his name on the note almost 50 years ago.
The ABC’s Paul Turton spoke to Matt and Ron about how the online community brought them together.