 The new Central line platforms came into use on 25 September 1933 replacing those of British Museum , which had closed the day before . As part of the modernisation the station was renamed Holborn ( Kingsway ) on 22 May 1933 , but the suffix gradually dropped out of use and no longer appears on station signage or tube maps . The new platforms at Holborn led to the number of passengers switching between the lines increasing tenfold by 1938 . 
