A large, original 10" x 8" photograph showing Detectives examining the damage caused to the front of Police Headquarters building at Cathays Park, Cardiff. An explosive device had been placed at the front of the building and then detonated on the 15th April 1969. This explosion was part of a campaign connected to protests relating to the Investiture of Prince Charles as the Prince of Wales. *The Ross Mather Police Memorabilia of Wales Collection.