The machinery and equipment used by the now-defunct engineering company Cleveland Bridge is on auction.
Unable to find a new buyer, the 144-year-old Darlington company closed down in September and laid off more than 100 employees.
Assets including machinery, lifting equipment and tools will be sold to pay 21 million pounds owed to creditors.
The Cleveland Bridge works on the Sydney Harbour Bridge and the nearest arch of Wembley Stadium.
The two-day auction will be held on Wednesday and Thursday, with approximately 2,400 lots.
Buyers must collect the items they purchased from the Yam Road website after the auction by December 10.
Robert Bainbridge, a potential buyer of CL Prosser and Co, a scrap steel business, was one of those who looked around the scene and said it was a rare opportunity.
"It seems a shame," he said.
"It's horrible, the amount of work they have done over the years is shutting down.
"Once it passes, it won't happen again."
Commercial real estate agent Sanderson Weatherall summarized these items for sale as "previously used to manufacture bridge sections, welding, shot peening, traditional machine tools, steel containers, lifting equipment, engineering transportation and motor vehicle manufacturing and metal processing machinery and equipment."
Partner Mark Weston said it expects to receive "significant interest in some of the lots."
The Cleveland Bridge was built in 1877 and is famous for its works on the Sydney Harbour Bridge and the transit bridge in Middlesbrough.
It also helped build buildings including the Wembley Stadium Arch, The Shard in London and Dubai International Airport.
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