Otherwise, they're both works of art, and have no value but what the valuer gives it, or the user/experience takes out of it.
It's not that it's suddenly spreading more, but as awareness has risen, valuers report it more".
Beverley Robinson, who bought her home on the estate over a decade ago, claims the local authority valued her flat at £117,000 while two independent valuers priced it at about £300,000.
"But it was their valuer who originally said it was worth a lot more," he said.
At the auction house, senior valuer Chris Albury said it was an exceptional collection.
The Revenue says that if you suspect the valuation you have been given may be too low, "you should ask the valuer to reconsider it … If the property has been under-valued you must write to HMRC to tell them the new value".
Auctioneer and valuer Chris Albury said: "It was a bit nerve-wracking, as all these odd things are which can draw huge amounts of attention, but when it comes down to it only a small number of bidders actually wanting to buy such a thing.
"If a bank's valuer finds evidence of it, or there is a history of it in the area, a specialist survey will be required.
Valuer Gordon Patrick said it was given to the vendor's mother, who lived in Southampton and died in 1972.
According to its valuer, Bruce Addison, Bonhams's bi-annual Vision 21 sales (covering art, fashion and furniture from the Twenties to the present day) 'generates huge interest' and high prices.
