Auctions have been lucrative, with the Cambridge authority later selling for £60,000 Evelyn Dunbar’s Joseph’s Dream, initially valued at just £5,000.
Nottingham City Council, however, has insisted its £41 million collection would never be sold as a “quick win”.
Hertfordshire first will auction 160 works, with a further 268 pieces, each under £100, being sold later. The entire sale is expected to raise £300,000.
John O’Connell, of the Taxpayers’ Alliance, claimed people would be “bewildered” that a council had such a large collection.
“The council should be doing everything they can to bring down costs for families, so should consider selling off the entire art collection,” he said.
“Any council hoarding valuable art collections should immediately look to auction them off, as it’s simply not fair to be increasing council tax when there are other financial means available.”