The main auction hall housing all Paul Rackham's vintage tractors

Paul Rackham caught the vintage-tractor-collecting bug in the early 1990s.

After buying a rundown International Farmall BM and restoring it to its former glory, he set himself the challenge of amassing one of the finest tractor collections in the world.

Twenty-five years later, he’s managed to pack a 50,000sq ft grain store with more than 200 rare and historic machines, some of which are the only surviving models of their kind.

See also: A short history of British engine maker Perkins

Tractors in the collection range from one-offs such as the Holt 75 and British Wallis to better-known models including the Massey Ferguson 135, the Field Marshall and the American-built Minneapolis Moline.

But now that the mission has been completed, Mr Rackham has decided it is time for a new project.

“My aim was to fill the shed and, now that I’ve done it, it’s time to take on another challenge,” he says.

“I’m also not getting the kick out of it that I used to.”

The tractors in the collection are a mix of well-maintained originals and fully restored models, says Mr Rackham.

“Those that were in reasonable condition we tried to keep as genuine as possible, but a lot were too far gone for that.”

Professional tractor restorers Fred and John Goldup, Ivan Cowlen, Andrew Joss and David Kidd shared the job of repairing and renovating the entire collection.

They have also been busy servicing, starting and prepping the models for sale, which is being jointly operated by Cambridgeshire-based auctioneers Cheffins and Suffolk-based Clarke & Simpson.

“This is a once-in-a-lifetime sale,” says Cheffins auctioneer Oliver Godfrey. “It is not just the monetary value, it is the historical value.

”What Mr Rackham has done is preserve these machines for future generations.”

“The nice thing about the collection is you can see a progression through the ages, from the linkages, pneumatic tyres, the move from petrol to diesel,” he says. “It gives you a snapshot of the history of agriculture.”

The sale is being held on 26 September at Mr Rackham’s Camp Farm, Roudham, Norfolk. More details, including a PDF of the full catalogue, can be found on Cheffins‘ and Clarke & Simpson’s websites.

The Ferguson collection

Hunday vintage tractor with combine header attachment

Paul Rackham also owns the Hunday collection of Ferguson tractors, which is being sold separately.

This includes tractors from Harry Ferguson’s early collaborations with David Brown and Henry Ford, right through to his own T20 models and later Massey Ferguson tractors.

There are also several rare implements, including a replica tractor-mounted combine, a side-mounted baler and a “manless” bale-and-sack loading device.

Mr Rackham hopes the collection will remain compete and end up in Northern Ireland where Harry Ferguson was born.

Paul Rackham and Fred Goldup

Paul Rackham (left) with terrier Sooty and tractor restorer Fred Goldup

Mr Rackham farms 2,000 acres of owned and tenanted land from his base at Manor Farm, Bridgham, Norfolk.

The farm grows a mix of arable crops, veg and maize for biogas and has a 1,000-head beef-finishing unit.

The lots to look out for…

Holt 75

Holt 75 vintage tractor

Built in 1918 by the Holt Manufacturing Company in Peoria Illinois, this Holt 75 is thought to be the only tractor of its kind.

The British Army used it during the First World War for various jobs including hauling heavy Howitzers around the battlefield.

Guide price: £150,000-£180,000

British Wallis

British Wallis vintage tractor

Another rare beast is this 1925 British Wallis. It’s fitted with a Ruston four-cylinder petrol/paraffin engine that develops about 28hp. It was built by Lincoln firm Ruston and Hornsby.

Guide price: £40,000-£45,000

Weeks-Dungey New Simplex

Weeks Dungey New Simplex vintage tractor

The Weeks-Dungey was the brainchild of Kent farmer, Mr Dungey, who wanted a compact tractor for operating in orchards.

William Weeks and Son began manufacturing the tractor in 1922 from its Perseverance Ironworks in Maidstone, Kent.

Guide price: £40,000-£45,000

Fordson Model F

Fordson Model F

The Fordson Model F was introduced in 1917 at the request of the British government to help meet need to increase food production during the First World War.

It is fitted with a four-cylinder petrol engine and was built by Henry Ford in Dearborn, Michigan.

Guide price: £15,000-£20,000

Marshall MP6

Marshall MP6 vintage tractor

This rare pre-production Marshall MP6 was the third model to come out of Marshall’s Gainsborough factory in 1954. Its Leyland six-cylinder diesel engine develops 70hp and drives a six-speed transmission. Top speed is 13mph.

Guide price £50,000-£55,000

Saunderson Model G

Sauderson Universal G

The Sauderson Universal G was built in 1916 by the Saunderson Tractor and Implement Company, based in Elstow Bedfordshire.

Guide price £60,000-£65,000

Other models that caught our eye…

1972 Allis Chalmers 200

Allis Chalmers 200 vintage tractor

1957 John Deere 820

John Deere 820 vintage tractor

1931 Caterpillar Fifteen

Caterpillar Fifteen vintage tractor

1968 International 634 Roadless

International 634 Roadless vintage tractor

1937 International T35

International T35 vintage tractor

1943 Minneapolis Moline

Minneapolis Moline vintage tractor

1956 Case 500 Diesel

Case 500 diesel vintage tractor

1948 Cockshutt 30

Cockshutt vintage tractor

1956 Oliver Super 55

Oliver 55 vintage tractor