Gerhard Richter (b. 1932), Abstraktes Bild. Photo: Christie's Images Ltd., 2011 signed, numbered and dated '842-7 Richter 1997' (on the reverse), oil on aluminium, 18 7/8 x 21 5/8in. (48 x 55cm.). Painted in 1997. Estimate £200,000 - £300,000. Price Realized...