Forged archaeological artefacts are being used to fund terrorism, police have said.
The Victoria and Albert museum is exhibiting examples of forged art
Profits from fake relics "exported by the tonne load" from the Middle East are finding their way into the hands of terrorists, according to police.
Examples of the seized forgeries and accompanying false documentation are on private display at the Victoria and Albert museum, west London.
The trade in fake art in Britain as a whole is worth up to £200m a year.
"We know for a fact that there is a terrorism link," said Det Con Ian Lawson.
"Archaeological stuff is being exported by the tonne load from Middle Eastern countries. If the money goes back into criminality, some will inevitably end up in the hands of terrorists," he added.
The Investigation of Fakes and Forgeries exhibition is designed to show art experts the methods used by forgers to fool investigators.
Also included in the show is the work of master forger Robert Thwaites, who received a two-year jail sentence after he sold a fake painting to a respected gallery owner for £20,000.
The forgery was so expertly done that the buyer was able to sell it on again for a 300% profit.
According to police, art forgery is increasingly being used to finance operations by criminal networks with continually evolving techniques.
But Det Sgt Rapley, head of the Metropolitan Police's Arts and Antiques Unit, said: "As quickly as criminals are adapting their techniques we are also developing ways to eliminate this type of crime."
Scotland Yard are considering opening the private exhibition to the public next year.