Summary edit

The photographer asked wiki contributor Johannes Maximilian for information about this tractor and is grateful for the information provided:

• The tractor is either a Hanomag R455 ATK or R460 ATK (the difference between these two models is a modification of the injection pump speed governor, otherwise they are exactly the same). The R455 ATK was built from 1957-1960, the R460 from 1960-1964. They are both heavy duty tractors with a Voith hydraulic clutch (Turbo clutch), hence the suffix ATK (A = air-filled tyres, TK = Turbokupplung). The engine is a 5.7 litre, straight-four, precombustion chamber engine, producing either 55 or 60 PS. Both 5 and 10-speed gearboxes were available.

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