LONDON.- Following a highly regarded exhibition of Gerhard Richter’s work at Tate Modern last year, Bonhams sold a 1983 oil on paper by the artist, measuring 34x24cm, for an impressive £133,250 yesterday (29 March) at its Contemporary Two sale. The work far exceeded its pre-sale estimate of £15,000 – 25,000. A screenprint of a Dollar Sign by the celebrated American pop artist Andy Warhol (1928-1987) also sold well, making £44,450. Initially painted onto a handkerchief and given to friends in 1981, this picture had attracted a pre-sale estimate of £20,000 – 30,000.