"I own two old tractors, and each of them is a potential injury, because of the way they were built and the things that are exposed on them," he says. "For example, the most popular tractor is the old ...

The classic Ford now has an easier life in its newly gleaming state, pottering around with a trailer and tackling those odd jobs for which the farm’s main tractors are a bit too big.

The tractors are all Ford-made and date from the 1950s and 1960s. A Ford retiree, Olson keeps each tractor in working condition. Olson has so many tractors, he’s not sure of the exact quantity.

Warren’s selection includes 35 Ford 4000s tractors, more than 30 Ford 3000s, around ten Ford 5000s, two Ford 13-6 diggers, a four-wheel drive Ford 7810, and more.

The 77-year-old built up a selection of 83 vintage Ford tractors, some of which sold for more than £20,000 each. Mr Warren said he hoped selling the machinery would "give a lot of enjoyment to ...