Tuning figures

[Bill Hibbert]

Can anyone help me with an odd request? I need tuning figures for 
various bells for a piece of research I'm doing. For each the bells 
listed below, I have recordings, but they are not good quality and I am 
unsure of the hum frequencies. The bells are:
Big Ben
Great Abel (Manchester Town Hall)
Great John (Beverley)
Great Peter (Exeter).
If anyone has figures for these, I need both hums and nominals (so I 
can calibrate against my own measurements).

Many thanks,

Bill H