About 150 jobs are at risk at a printing firm's factory in Peterborough.
The parent company has a contact to replace Iraqi currency
The British company De La Rue, which owns the factory, is the world's largest commercial security printer and papermaker.
It recently won the contract to print Iraqi banknotes.
On Wednesday it announced it was putting its Cambridgeshire factory, which produces cheque books for high street banks, up for sale.
If it fails to find a buyer the plant will close.
The company said demand for cheque books was dropping.
In September 2002, De La Rue cut up to 350 job with the closure of its factory at High Wycombe, Buckinghamshire.
Some of the jobs were moved to its offices in Peterborough and Dunstable.
De La Rue employs more than 6,500 people across 31 countries.