The most expensive camera sold at auction was sold to an anonymous buyer this month for €2.16 million (£1,73 million, $2,8 million), at the WestLicht Photographica auction in Vienna, Austria.

Known as the 0-series, the prototype Leica 35mm film camera was one of just 25 produced in 1923 for testing.

Only 12 of them are known to have survived to this day.

The starting price was €300.000, but reached the final bid of €1.8 million in just four minutes. The remainder of the sale price included taxes and fees.

Previously, the world's most expensive camera was also a 0-series Leica, selling for $1.7 million.