Michiel 2005's photos with the keyword: 1936

The use of franking machines at the post office eliminated the need to keep stamps on stock.

They used this engine concept until the 1980s. 45 hp, 2600 cc "1936: The Mercedes-Benz 260 D was the world’s first production passenger car with diesel drive. Its four-cylinder engine was fitted with a Bosch injection pump that allowed high revs and ensured a particularly fast fuel supply. The 2.6-liter engine had a compression ratio of 1:20.5 and output of 33 kW (45 hp) at 3200/min. The world’s first diesel passenger car was the result of intensive research that dated from the merger between DMG and Benz & Cie. in 1926. Among the test engines developed were a 3.8-liter six-cylinder unit with 60 kW (82 hp) and the three-cylinder OM 134 diesel with 22 kW (30 hp) used in the Mercedes-Benz 175 D (W 134) prototype. But the real step in the direction of production was the four-cylinder OM 141 engine with 26 kW (35 hp) used in the 175 DX (W 141) test cars. This ultimately gave rise to the four-cylinder 2.6-liter OM 138 diesel – based on a six-cylinder commercial vehicle diesel engine – for the Mercedes-Benz 260 D. By this time the engineers had perfected soft combustion after the pre-chamber process by using, for example, a Bosch four-plunger injection pump. The state-of-the-art four-cylinder unit already featured overhead valves, and a crankshaft running in five bearings helped ensure effective vibration damping." Source: www.emercedesbenz.com/Mar08/25_001082_Winning_Foursomes_A... See also here: www.emercedesbenz.com/Jan06/17FlashBackDieselEnginePassen... for some more history. A visit to the Automobile and Technical Museum Sinsheim in Germany.