In 1951, South Australian winemaker Max Schubert created a small volume of experimental wine in the Adelaide suburb of Magill.
Today the vintage is known as the first of the Penfolds Grange Hermitage collection and is one of the most expensive bottles in Australia.
One undisclosed Aussie buyer is the latest to add the rare red to their collection, having paid $51,750 AUD for the 750ml bottle in an online auction.
In a bottle with roughly five glasses of wine, that's roughly $10,000 AUD per glass.
The Chief Executive of wine auction house MW Wines, Mr Nick Stamford, said expensive bottles like this one were rare.
"With a couple of hours to go, we noticed a big bid had been placed for a certain bottle of wine," he said.
The wine was created in limited supply - around just two to three barrels - by Max Schubert at the winery's Magill Estate.