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 for the 750ml bottle in an online auction.
In a bottle with roughly five glasses of wine, that's roughly $10,000 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 '51 Grange generally is an extremely valuable bottle of wine."
An experimental vintage with a hard upbringing
The wine was created in limited supply - around just two to three barrels - by Max Schubert at the winery's Magill Estate.
With just a handful of bottles remaining in existence, the rare bottle was tasted, re-corked and signed by Mr Schubert himself, as well as today's chief winemaker Peter Gago.
According to Mr Gago, the original vintage was never destined to gain the prestige it has today.
"It was very much, in every sense of the word, an experimental wine," Mr Gago said.
"With collections, people very much look upon this '51 as being the first, in inverted commas, legitimate Grange."
"People will pay a lot of money for that very rare, first experimental '51."
Mr Gago said some of the first few vintages struggled to find success, with Mr Schubert forced to create his 1957 to 1959 wine underground after production was prohibited by the family company.
"The earlier Granges did have a little bit of a hard upbringing in the commercial sense," he said.
"We do not know this for certain, but we suspect that he (Max Schubert) probably showed this to his friends, critics and journalists maybe that little too early before it really came into its own."
Mr Gago said while the most recent sale was significant, it was not the highest.
"In 2016 a bottle of this '51 was sold by Dan Murphy's for $65,000 retail, so this current pricing is not the record''
So how good does a $50,000 bottle of wine taste?
Well it seems pricey buyers are less interested in the wine flavour itself, and more keen on adding to their wine cabinet collections.
Mr Gago said this one was probably not bought for consumption.
''There are much better Granges from a drinkability perspective available at a much less expensive price," Mr Gago said.
