DESCRIPTION: Picture shows: Two RAF Bomber Command's 'heavies' silhouetted against dense clouds of smoke during the air assault on the night of 23/24 February 1945 on the important industrial transport centre of Pforzheim, south east of Karlsruke. This picture is an extract from a film made by the RAF Film Production Unit during the attack. The white 'cascade' is caused by glowing target indicators (picture issued February 1945)