Good footage in this link of controlled detonation of last year's Birmingham UXB.
There appears to be a modern version of the clockstopper on top of the bomb in the first photo, so presumably, it had a No.17 fuze:
http://www.bbc.co.uk/news/uk-england-birmingham-39939925
There appears to be a modern version of the clockstopper on top of the bomb in the first photo, so presumably, it had a No.17 fuze:
http://www.bbc.co.uk/news/uk-england-birmingham-39939925