An Austrian bus driver who found a bag stuffed with €390,000 (£316,387) handed it in to police who traced the elderly woman who had left it behind, reports Reuters.
The man, named only as Wolfgang R, was doing an end of shift inspection of his vehicle when he came across the fortune which he thought was "shopping or medicine".
Instead he opened it up to be confronted by hundreds of banknotes.
The BBC report Police used a deposit slip to trace the owner, who had withdrawn her entire life savings, the reason for which is unknown.
Eduard Winter, head of Vienna's public transport company Wiener Linien said: “We are proud to have such upstanding employees. This shows the spirit of our firm."