City of London Police say anyone with information should call 020 7601 2222, or Crimestoppers, anonymously, on 0800 555 111.
More top news
Princess Eugenie has become engaged to long-term boyfriend Jack Brooksbank, Buckingham Palace has announced.
Darren Osborne, 48, allegedly mowed down worshippers attending Ramadan night prayers in June last year.
The woman was left with a fractured skull and an arm broken in several places after the attack in Brixton.