Keith Haustorfer said his friend found the bottle on a South Australian beach last week and gave it to him.

He said the contents detailed exactly where the bottle had come from.

“It was from a Russian ship and the bottle contained coordinates of where it was dropped into the water,” he said.

“It was dropped near the tip of South Africa.

“The information inside celebrates sailing in Russia.”

Mr Haustorfer said the bottle was dropped into the ocean in 2012.

“It’s travelled a long way and it’s intriguing,” he said.

Mr Haustorfer said there was an email address on one of the letters, which he wrote to, but he hadn’t received a response yet.