Sell Discover here Sell art An art auction is a question of trust and professionalism Sell collection Would you like to liquidate a collection or sell a larger estate? You can trust in the many years of experience at Karl & Faber. We are happy to advise and support you on this path. Corporate Collections Is your corporate art collection about to change? Take advantage of Karl & Faber’s many years of experience in the art market. We would be glad to give advice and accompany you along the way. Estimate request & Advice Would you like to sell a painting? Do you need to have an art collection valued for insurance? Or are you simply curious as to how much your special heirloom is worth? Private Sales Private sales are art sales that take place outside the auction and without the public. Here, two prospective buyers do not bid against each other, but the art auctioneer mediates between a seller and a potential buyer.