A 1923 Leica camera fetched a world record 2.4 million euros ($2.9 million) at auction in Vienna, the city's Westlicht museum said.
The minimum price had been set at 400,000 euros but the Leica 0-series no. 122, one of a 25-strong series of prototypes made two years before the reputed German marque began retailing, was the subject of ferocious bidding given its pristine condition.