The Remarkable Journey Of The Mercedes-Benz O 10000 Mobile Post Office

Giancarlo Perlas June 3, 2023

Discover the fascinating story of the Mercedes-Benz O 10000, an extraordinary vehicle that served as a mobile post office for the Austrian Post during the mid-20th century. With its versatile design and rich history, this iconic bus played a pivotal role in transporting mail, connecting people, and leaving a lasting impression at cultural events. Let’s delve into the remarkable journey of this historical gem.

A Post Office on Wheels

The Mercedes-Benz O 10000, built in 1938, became an integral part of the Austrian Post’s fleet, functioning as a long-distance bus before its transformation into a mobile post office. This unique adaptation allowed the Austrian Post to offer a complete range of services in one convenient location, making it a mobile hub of communication and postal activity.

A Multi-Purpose Performer

Beyond its postal duties, the O 10000 bus embraced its role as a performer at cultural events, including the prestigious Salzburg Festival. With its polished exterior, gleaming coat of arms, and impeccable paintwork, it became an eye-catching attraction that left a lasting impression on the audience.

Evolution and Adaptability

The bus underwent multiple conversions throughout its service life. After World War II, it transitioned into a parcel carrier, transporting packages between Vienna and Salzburg.

Later, in the 1960s, it received its final conversion, emerging as a full-fledged mobile post office, serving customers at various locations until the late 1970s. This remarkable adaptability allowed the bus to fulfill different functions over four decades.

Communication Revolution

During an era when mobile telephony was still a futuristic concept, the mobile post office catered to the communication needs of the time. Equipped with three telephone booths, customers could make calls from these cabin-like compartments. International long-distance calls were even possible, making the bus a vital link to the outside world.

Impressive Design and Functionality

With a capacity of up to 60 passengers, the O 10000 boasted generous dimensions. Its powerful OM 57 six-cylinder diesel engine delivered 110 kW (150 hp) and provided the necessary power for its impressive size.

Meanwhile, its clever interior design included sliding seats for clerks, recesses for their legs, and a fold-out desk flap for writing purposes. These thoughtful features ensured efficiency and comfort for both staff and customers.

Final Thoughts

The Mercedes-Benz O 10000 stands as a testament to the innovative spirit and adaptability of the Austrian Post. From its origins as a long-distance bus to its later incarnations as a parcel carrier and a mobile post office, this iconic vehicle played a vital role in connecting people and delivering mail across Austria.

Preserved and displayed at the Mercedes-Benz Museum, the O 10000 serves as a reminder of the rich history of postal services and the remarkable vehicles that powered them, particularly this gem coming from the three-pointed star marque.

About Author

Giancarlo Perlas

Giancarlo Perlas is an economist by profession with a career spanning nearly two decades. His professional journey has seen him assume vital roles in various government and private organizations, particularly in the blockchain and cryptocurrency sectors. Alongside his civic and corporate pursuits is his love for cars, particularly those made by Mercedes-Benz. In 2012, he found himself with like-minded individuals within BenzInsider. From then on, he used the platform as a way to share his passion with the automotive community. Follow his Facebook page at, X (formerly Twitter) @giancarloperlas, and IG @benzinsider. View all posts by Giancarlo Perlas →

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