429 Too Many Requests Established in 1971, Frederick Mulder Ltd specialises in original European printmaking from 1470-1970 and is one of the world's foremost dealers in the prints of Pablo Picasso and other Modern mas Established in 1971, Frederick Mulder Ltd specialises in original European printmaking from 1470-1970 and is one of the world's foremost dealers in the prints of Pablo Picasso and other Modern masters such as Edvard Munch and Henri Matisse. Based in London, our clients include major museums such as MOMA and the British Museum as well as private, institutional and trade clients. Our holdings of Picasso's linocuts are probably among the most extensive in the world.