So inert weapons and dummy bombs, I'd suggest that all or most of the real bombs went for testing. As for the Aldermaston comment, I'm not suggesting that it was common knowledge that there were no real bombs in the RAF, the propaganda took care of that. All you had to do was explode a few real ones and the press do the rest. As for Thor did they have 'real' warheads? Wasn't Thor a defensive missile there were certainly no ICBM's until Polaris AFAIA. The Aldermaston record shows about 20 devices being made in total.