The red of the Ferguson and the blue of the Ford was matched in size and power by the brown and white of the David Brown, but in the mid-1960s, the David Brown tractor had one huge advantage over its rivals: it was very keenly priced. While today, a rummage through the pages of DoneDeal will inform you that a restored version of these old workhorses can sell for anything up to €8,000, back in the day, they could be bought new for £800.