Inscription:- can be read here.
Sculptor:- Ian Walters - made from bronze.
Unveiled:- 28th October, 1985 by Oliver Tambo, president of the ANC.
Notes:- commissioned by Ken Livingstone when he was leader of the GLC; re-erected in 1988 on a higher plinth, after the original fibreglass version was destroyed by fire in a racist-fuelled attack; erected when Mandela was in prison and still considered a terrorist by many (Margaret Thatcher replied 'No' when asked in the House of Commons if she planned to visit the sculpture); there is a rather nifty animated 3D picture of the bust here.
Overall:- 6.5/10