Erection date: 20/11/1972
Her Majesty the Queen accompanied by His Royal Highness, the Prince Philip Duke of Edinburgh, fixed this stone to mark the foundation of the Barbican Arts Centre on the occasion of their Silver Wedding, 20th November 1972.
Site: Royal Silver Wedding at Barbican (1 memorial)
EC2, Gilbert walkway, Barbican
This plaque is at the north end of the Gilbert walkway over the water gardens. This Londonist post contains some photos of the Queen visiting on this day.