The programme — still available on the BBC's iPlayer (here) had presenter Fiona Bruce and renowned London-based art sleuth Philip Mould (above left) seeking to authenticate a Monet — Les bords de la Seine à Argentueil — bought for £40,000 some 18 years ago by David Joel, a British man in his eighties. Mr Joel has never been in any doubt that his painting was a signature work by Monet. Trouble is, the Monet Committee at the mighty Wildenstein Institute in Paris disagrees.
For forty years the Wildenstein dynasty in Paris has been publishing the five-volume Monet catalogue raisonné, the 'bible' containing all known authenticated works by the artist. No Monet can be sold at a major auction house without being listed in the catalogue.
The problem is that the catalogue is based solely on the opinion of the Wildenstein's Monet Committee and, as the programme suggested, that opinion is now in doubt.
Daniel Wildenstein, who died in 2001, first published the Monet catalogue in 1974. On his death, Daniel's son Guy Wildenstein inherited the privilege of being, along with his Monet 'Committee', the main arbiter of authenticity where Monets are concerned. For some years now, the international art market has been re-routing the rivers of authentication to bypass connoisseurial 'authorities' like the Wildenstein family and their vested interests. The recent high-profile cases of art forgery in New York have brought forensic science into the arena, seemingly to the expense of traditional connoisseurship. This is perhaps not surprising given the authentication mistakes that were made over the 'Pollocks', 'Rothkos' and 'Motherwells' sold by the Knoedler Gallery, and the dark goings-on behind the scenes of the Beltracchi scandal in Germany.
In the BBC programme, Bruce and Mould ventured on a long and exhaustive quest that embraced cutting-edge technological analysis into the painting's physical structure, deep archival research into the picture's provenance, and all-embracing consultation with the world's leading Monet scholars.
The result appeared to be as close to a cast-iron, bullet-proof, water-tight attribution to Monet as one could ever hope to get. Yet still it was not enough to convince the Wildenstein's Monet Committee who would not even deign to meet Mould and Bruce. Instead they demanded that the painting and the dossier of evidence be left at their fortress-like headquarters in Paris where they would look at it in their own good time.
A few days later, the Wildenstein committee finally pronounced — "No," was their patrician verdict on the picture's authenticity — thereby seeming to confirm either how hopelessly compromised the Wildenstein edifice has become, or how connoisseurial art authentication is as inexact as tea-leaf reading.
For the past 18 years, the late Daniel Wildenstein has consistently rejected David Joel's painting, although at no point during that time had the painting been treated to the deep forensic analysis brought to bear on it during the BBC research. Thus, when presented with the compelling evidence of its authenticity, Daniel's son Guy was stuck between a rock and hard place.
The Wildenstein family is currently under investigation for alleged "concealment of theft" of millions of pounds worth of paintings entrusted to Daniel Wildenstein by Anne-Marie Rouart, a descendant of Manet. A further allegation of "theft and concealment" has been made by the heirs of Joseph Reinach who had many works stolen by the Nazis. Meanwhile, The Daily Telegraph reports that the Wildenstein family faces allegations of having failed to declare the true extent of their estate for tax purposes.
The Wildensteins may have momentarily obstructed the progress of David Joel's Monet landscape, but it is only a matter of time before they and their ilk are swept aside by the forces of technology. Digital databases are already making provenance research more open and accessible. High-resolution Lumière cameras (240 million pixels), plus infra-red, ultra-violet and multi-spectral scanning, are steadily providing means of authenticating works of art that could undermine the exclusive privilege traditionally enjoyed by the connoisseur's eye. What is needed now is for the broader art market to build an ethical consensus and topple the Wildensteins from their lofty perch.
The Wildenstein era is almost over. Amen to that.