Two works by the famous Venetian painter Canaletto were sold earlier this month during Sotheby’s Old Masters sale in London for $15.7 million. The paintings, which belonged to the corporate collection of HSBC Holdings Plc, carried a pre-sale estimate of $19.5 million.

The two identically sized canvases depict St. Mark’s Square and the Rialto Bridge in Venice and were painted between 1738 and 1742. The works’ buyer has not been identified.