A quest to discover Britain's oldest working tractor has been launched by a classified farm machine sales website.

In addition to winning a £1,000 prize, the owner of the oldest model entered via the LammaXchange website, will be invited to display their vintage tractor at the company's sister event, the LAMMA 2016 trade show in Peterborough.

'We know there are a lot of very well used old tractors on Britain's farms, and we want to seek them out and tell their stories,' said James Rickard of LammaXchange.

'Whether you use your old workhorses for yard-scraping, mowing or checking your sheep, we want to hear from you.

'Some of the world's oldest machinery brands originate from Britain, in the era when we became global leaders in engineering and innovation. Who knows, it may be one of those early British-made machines that wins.'

Entrants can upload a photo and details of their tractor by clicking here.