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Christie’s London: 25% to £100,000, then 20% to £2m, 12% thereafter

Christie’s Paris: 25% to €50,000, then 20% to €1.6m, 12% thereafter

Heritage Auctions, Dallas: Comics 19.5%

Keys, Aylsham: 17.5%

Sotheby’s London: 25% to £175,000, then 20% to £2, 12.5% thereafter

Sotheby’s New York: 25% to $250,000, then 20% to $3m, 12.5% thereafter

NB: premiums may not apply or have been set at different levels where prices from sales of previous years are quoted. Exchange rates are those in effect on the day of sale.